SadGirl brings up a good point, are you comfortable with his flirting? It seems like you are not. Is he willing to adjust his behavior to be friendly without flirting? Also, from what you've said, his response seems positive. He apologized for his behavior, he thought about it all day, you made him think about something, that's huge. It seems like he is willing to lay off the flirting, from your account.

You say you are worried he will sleep with another woman if the chance presents itself, but has he ever cheated on you? Okay, so he looks at other women...but even women in relationships look at other men. You can't NOT notice an attractive person. Doesn't mean you want to sleep with them.

I think maybe you need to work on trusting him. And it sounds like he might be worth trusting. You brought up a concern and he listened and said he was more conscious and aware of what he was doing now. Sometimes it's scary to trust, and that trust can be broken, but has he done anything that makes you distrust him so much? Or is this distrust based on what other people have done to you?

Seesaw