I, [27f] am dating a [26m] and we're in a type of nonmono situation that I don't know how to label. He has a gay best friend who, when he was single for a long time, would sometimes give him head. My boyfriend does not believe he is anything but straight, though, as he says " a mouth is a mouth", meaning if someone wants to give him oral, he doesn't care what their gender identity is.

That one friend (23m) is a really kind and caring person who I also love having around, although he isn't particularly interested in getting in bed with me. He said, in more detail, that he would be fine with doing anything except a "Home Run" with me. Which I am fine with.

But now my partner has brought up another fwb from his college years that is moving to our state soon and that friend messaged him asking if they could resume their agreement. My partner asked if I was OK with it and while I am like 95% OK with it, I am slightly more annoyed with the fact that this new prospect is 100% gay and is repulsed by the female body and would not want me to participate. Not that I NEED to participate to be fine with it, but I'm just annoyed that he is getting all the extra attention from gay guys meanwhile I am on all sorts of medications that reduce my libido to barely anything and I struggle to be fully present for him in that aspect.

To be clear, I trust my partner implicitly and know that without a doubt he would stop everything the moment I ask, I have no doubts nor concerns about his fidelity... Is this just jealousy? Should I be wanting attention from his side pieces or should I focus on my own? Neither of us want to date anyone else, but we are fine with fwbs outside of the relationship as long as everyone gets along. I'm also new to all of this, so some pointers would be helpful!