I'm the same with my 'partner' (hetrosexual relationship). She finds the terms girlfriend / boyfriend a little uncomfortable for whatever reason. I'm similar

I'm the same with my 'partner' (hetrosexual relationship). She finds the terms girlfriend / boyfriend a little uncomfortable for whatever reason. I'm similar really. It's a holdover from my annoyance at people in school that used to say "me and my boyfriend blah blah blah", "my girlfriend told me blah blah blah", etc. So now I use my partner's name whenever possible, otherwise introducing her as my partner in conversation. Not saying that's what the reason is here, but that's my personal reasoning.