I can tell you that for myself I don’t think I could do it. I’d have to become the jealous controlling type (let me see your phone, where are you going) and that’s just not who I want to be.
I dunno man. It’s a rough place to be. Divorce can be a blessing. Mine was. It just took awhile to see it.
I’m just going off my own experiences both as a child of 2 divorces/bitter marriages and as a divorced guy with a kid.
I respect everybody’s reasonable opinions expressed here. Just having a bit of friendly debate on perspective about an important and interesting subject.
Just don’t ask my dad for marriage/relationship advice: “you’re handsome go get a new wife”
He’s on his fifth or 6th now 
You’re going to get a mixed bag of responses. I won’t tell you what I’d do, but rather offer a few considerations.
What can/can’t you forgive? You mentioned infidelity. Are you able to not only forgive, but 100% trust your wife again?
If you make it past the previous questions, what has your wife done to assure you that things are changing and the same things won’t happen again?
Balance responsibility (bills, housing, care for your son) against your future. Some will stay together for financial reasons, or because children are involved, but will be miserable in concert. So, piggy back question is, what is healthiest for you and your child?
Like I said, I could tell you what I’d do, and others can also, but imo looking at this from a holistic perspective from your eyes is what is most beneficial.
Be good to yourself also. Don’t beat yourself up trying to find the “right answer.” It doesn’t always exist.
Best wishes hopefully all works out
Being a child of divorce I never want my son to have to live the split family life that I did, and still do to some extent. Even when my wife is unfaithful, unpleasant, or absent. These things can happen.
Most religions teach forgiveness because it’s a good idea. If you can truly forgive and be forgiven, your life will be all the more positive. Negativity is an anchor that drowns the soul.
Too much to reply to individually here. But I am not the jealous or controlling type and don’t want to be. I want to be happy for others happiness/successes even if i have good reason to be jealous. We have both matured and progressed a lot during this time. I think I could love and trust her fully again although I don’t think I’ll ever actually get married again. We were both in bad places at the time and I feel like the best thing to do is just press the reset button. I fucked up, you fucked up. We were both in the wrong but that doesn’t matter ultimately and let’s move on. Remember why we get along and like being in each others’ company in the first place
You may have answered your own question. Does she feel the same?
She recently admitted that she made mistakes and didn’t handle anything in a healthy way either. Ultimately the goal was to answer my own question here
My mother always drumbed it into me “don’t stay together for the kids”
Kids bounce back easily from most stuff but growing up seeing both parents having animosity for each other and them both being unhappy can have a serious effect on the kids mental state later in life.
Keep your kids happy by allowing yourself to be happy 
You said “I feel…” and that’s your best guide. Much better than anything I could tell you. Anything I say is me biased.
My thoughts on this.
She cheated, that can’t be undone.
It can be forgiven, not forgotten, as much as you wished it could be. The kind of trust we put in our marriage, once lost is impossible to rebuild.
I can’t say I’ve been through your exact situation,
everyone’s is different.
I know that the faith I put in my partner ALWAYS having my back is the bedrock in my relationship.
When that person has already put a knife in it once, let alone the multiple pieces of kitchen cutlery your wife buried in yours, that faith would be gone.
…
I couldn’t, it would be over.
…
The kids deserve to get to know their parents as happy people!
Staying together “for them” leads to miserable people!
Give it another try for your kid!
But regardless of what you decide to do and how things turn out DO NOT touch the dope again!
It is a tough row to hoe being an addict. I know.
It ain’t 2010 no more, fucking with that shit today WILL end in a Fentanyl OD!
It Is Just One Life we got.Try to make It Better,It can take some time,but the Truth reveals with time,this Is the point.If you feel It,try It.Everyday.You Will soon see if It Is not worth your TIME after TIME reveals the Truth behind your partner intentions and your needs.
Time heals too
You can travel thousand Miles,and think of Someone.But It Is in time that things get Lost.
I would never get back with her solely for the sake of my son. If we’re happier apart then we are better off apart. The things that went down can be forgiven but not forgotten, true. If we forget what we’ve been thru then did we learn anything at all? I feel I’d be in the right whichever way I choose to go but I REALLY REALLY appreciate everybody giving feedback and opinions to help me process my own feelings and thoughts here and allowing me the space to do this. Talking 1 on 1 with a therapist has been helpful but I don’t feel nearly as helpful as the wide array of inputs I can get here to help me look at every angle. I want to be happy and I also want her to be happy. My son deserves both parents running at 100% as much as possible
I wish I’d done this here sooner as it would have relieved a great deal of inner turmoil
I Say consider what I wrote and add that your kid needs exactly what you said.100% both parents.
Dang bro sorry to hear about this. I’m actually kind of going through the same shit right now we ain’t married but have a beautiful daughter together and been together 5 years. I’m trying to move on but she’s not making it easy she won’t even give me no space or time to think.
Only advice I got is work out and go for walks/hike there the only things that can clear my head.
Cheaters man they ruin so much and don’t even know 