The reason Hubby and I got engaged when we did was because I complained that when he called me his girlfriend I felt like I was only a temporary part of his life. So he proposed and said, "There, now you can call me your fiance."
I call Guy my boyfriend when I'm talking to people who know the situation, but I don't really like calling him that. We just haven't been able to come up with another term. As stated in my signature, he prefers to avoid labels, but I need a term for him because that's how I am. When I'm talking to people I'm not "out" to, I just call him my friend.
And he and hubby call each other "Bro-hub."
Me: 44, cis-het female, poly
Hubby: my husband, 42, monogamous
S2: my "attachment", male, 45, undetermined
My daughters: Alt (age 19) and Country (age 16)
S2's sons: Spikes (age 9) and Beads (age 6)
Brick: male, 44, honorary "brother"
Guy: male, 44, former boyfriend, now reality checker