@OmgItBurns@discuss.online I can answer one part of this already because I've already watched my partner with someone else and was okay with it. He dated someone else while we were separated and it didn't bother me. I care about him getting what he needs too and his happiness.
From what I know about the other guy, he was dating 2 people when we met so chances are yes. I haven't said anything about this to him yet though. I'm just working through things first and making sure I don't make a mess. I have been interested in others while with my partner as well, but never put the pieces together like I can now.
I appreciate your input! I intend to take this slowly and let things happen naturally. Plus side, my current partner tends to do his own research into things like this so maybe he'll come around in time. Thank you!