He cheated and I took him back....

So a few months back I found out boyfriend had been cheating on me and I left him right away. Well then we started talking again a few weeks ago and we're giving our relationship another go. We'll the last two times I've been over and we've had sex he's been sitting there while we're having sex and apologizing. Every rime he does this I feel like I'm going to break down another cry. But today when we were having sex he kept telling me he loves me and that he was sorry over and over again and he legit started to cry.... I didn't know what to do. I truly don't know what to feel. My emotions are everywhere with this situation.