Recently one of my good friends called me during work and asked if I could give his wife’s car a jump since she was down the road from me and he was out of town. I said yes, but I’d have to wait an hour or so until I was free. I never told my girlfriend I was going to do this since I already knew I’d catch flack for it, but to me this is more of a favor for my friend than his wife since he called me to ask. My girlfriend had already been saying I’m too involved in my friends’ relationships, getting too close to their girlfriends/wives, doing too many favors for others so I knew I’d be catching hell for it if I mentioned it.

I did not act inappropriately with my friend’s wife at all. Just talked mostly about the cause of her car dying and then had to re-jump her car 5 minutes later when it killed again after the first successful jump. Then I went home and back to work. Fast forward a month and my now fiance (I proposed in between this time) sees the texts with his wife on my phone saying how I was agreeing to give her a jump. She immediately flipped out and said I’m too close with my friend’s wife, doing inappropriate things bc my friend wasn’t there and it was just his wife and I there, and I look even more suspicious bc I never told my fiancé about me going do the favor.

Not really sure if that’d be considered inappropriate because I’m helping another man’s wife. To me it’s not at all. AITA for helping out my friend’s wife while still in a relationship?

TLDR; a month ago I gave my friend’s wife a jump bc her car died and he asked it as a favor. My fiance claims it is inappropriate to do this. AITA?