nycindie said it more succinctly than I did. I have no objection to meeting a metamour if I had one...if I were *asked* to do so. If I were told it was a requirement of the relationship, hell no. I have an allergy to doing what other people tell me I have to do solely because they say so.
In thinking about it... my first boyfriend, Guy, and Hubby did have a friendly connection, though I don't know whether either of them would say they were friends. Hubby and I were together at the party where I met Guy, so Hubby met him at the same time. Guy told me after an hour or so of talking that he was worried Hubby would have an issue with him (Guy) paying so much attention to me. When I passed that along to Hubby, he took Guy outside and said, "I just want to let you know that whatever she's okay with, I'm okay with, but if you hurt her you're fucked." That formed a bond of mutual respect and friendliness between them that lasted a year and a half, until Guy did what he did last fall that caused me to end the relationship. At this point, a year later, Hubby can't even hear Guy's name without getting all ragey, but prior to that they occasionally texted each other just to say hi.
Hubby and S2, not so much... S2's the type who's friendly to everyone, but for some reason he brought out Hubby's Alpha-holeness. For my sake, and Alt and Country's sake a couple of times, they were civil to each other, but more than once I had to pull Hubby aside and tell him to stop trying to assert his dominance because he was making a fool out of himself, especially since S2 refused to play along.
As I said, Guy met Hubby and me the same night, so there was no "would you meet my husband" conversation. With S2, I did ask the two of them to meet once it became clear S2 and I were in an actual relationship, mainly because I wanted each of them to have a face to go with the name and because in case of an emergency, I wanted them to have at least met so one could get in touch with the other without it being awkward. I also made it clear to both of them that they didn't *have to* meet, I was asking primarily to make myself more comfortable, and that if they did meet, I didn't expect them to even ever speak again, let alone be friends.
With Boots, I told him that if things became ongoing between us I would prefer he meet Hubby, especially after I met Glow. Which turned out to be a non-issue, but anyway. With Woody, I've already said that while we're "just friends" it isn't an issue, but if it becomes more, I would like him and Hubby to meet. But I've made sure I state the request as "This is what I would *prefer* for my own comfort, but it isn't required." I'm just as opposed to telling other people (other than my kids) what they have to do as I am to being told what I have to do.