Am I wrong??

My fiancé keeps in touch with people he’s slept with. He’s bisexual, and most of these folks are men. I accepted it because honestly it wasn’t my place to have an opinion. That’s just a part of him and I can’t change that. When he goes to gay clubs with his friends (not very often) he always ends up seeing and exchanging numbers with someone in his past. I know him and I trust him, I understand that he just likes to be social and doesn’t see it as a problem but I get worried that others may perceive his friendliness wrong. There has been two occasions where the other person thought he wanted to rekindle something, and after he declined, they stopped talking. Since that situation occurred, I just feel like maybe it’s best he doesn’t engage with those people anymore. You can be cordial, but exchanging numbers and texting may be read as mixed signals, you know? He says it’s not fair to treat everyone like that because everyone won’t try to cross those lines, some may actually be looking for friendship as well... What do you all think? I say don’t put yourself in that situation, he says we can’t go on thinking everyone’s the same.

**I want to be clear, although we have these conversations, I will stay with him no matter what he chooses to do. I do trust him, i don’t have doubts about that. I’m just trying to get more points for both of our arguments because to be honest I’m still not understanding his take on it, and you guys may also help him understand my side as well**