Cheating on social media..

Can a 33 year old man who is obviously grown , not a child, really change? Found out my bf has used social media, Facebook, Instagram, Tinder, to talk to chicks our whole two years together. I feel so stupid. If I do stay with him, will I just be miserable always wondering what he’s doing? Do you think someone of that age can actually grow the fuck up and be a good man?? Or is he too far gone? Anyone have any input? I feel lost on what to do. Do I give him another chance? Two years is too long of a time to call it a “mistake”. Not to mention super embarrassing on how I found out. My cousin’s boyfriend has a child from a previous relationship, so he obviously still talks to his child’s mother because of their child, well someone hacked my cousins bf’s dead grandpas Facebook (sorry super confusing) and messaged his child’s mother. She she screen shotted her Facebook messages to show my cousins boyfriend that someone must have hacked his dead grandpas Facebook and sent it to him. Then my cousin noticed my boyfriend was on of the people in her Facebook messages. How humiliating to find out your mans a cheater. Ughhhhhh will he grow up or do I cut my losses?

@ridinout

He admitted everything to me. So I know for a fact he has been talking to these women.