Is there a way to recover from this?

I've been in a relationship with my (now ex) boyfriend for just over a year. I'm 25, and he's 26. Recently, I found out that he hasn't been completely faithful. I discovered he had been frequenting bars, talking to other girls, and even getting their numbers, although he didn't text them afterward. To make matters worse, I stumbled upon a folder on his laptop filled with hundreds of photos of partially clothed women—some of whom are colleagues and friends, not just Instagram models. I feel incredibly betrayed, especially since he's always presented himself as Mr. Nice Guy. While he has generally been a decent boyfriend, there were moments when he made rude comments about my appearance, brushing them off as jokes, and instances where he’d cancel plans at the last minute. However, on the whole, he was loving. After I learned about his infidelity, I ended the relationship. Now, he’s been relentlessly messaging me, asking for another chance. I’m torn—I don’t want to seem foolish by taking him back, but I really thought we had a future together. What would you do in my situation?