Originally Posted by begonias
He says that he wants to spend his life with me and sleeping with someone else would not make him love me any less.
I don't think he sounds polyamorous. He sounds more like a swinger.
I did a quick Ctrl-F "poly" and only respondents have used that term in this discussion. begonia has not stated or implied that he's interested in other romantic relationships, just sex.
For begonia's purposes, the difference doesn't matter. Both are non-monogamy, she wants monogamy.
But the distinction is relevant to our analysis of the situation and his personality. It makes a big difference in terms of what kind of relationships he should seek in the future. Since he's not here, it's a moot point. I just felt the need to point that out, it might be helpful to someone else in the future.