AITA for having a picture of my (23M) best friend on my desk but none of my girlfriend
We've been dating for 2 years and live together, so it's a serious relationship, but I just feel like putting a picture of her on my desk is more of a wife thing
Yet she came to my work for dinner last night (I work 2nd shift so I go on break at 9 pm), and when we were hanging out at my desk she was kind of taken aback by the framed picture of my best friend on the desk. She clearly noticed it, noticed me notice her notice it, and so she pointed it out and was like, "why do you have a picture of (her name) on your desk?" I just kind of laughed and said I didn't know, I've just always kept it there and seeing her makes me smile, so I don't even think much of it.
I don't think she wanted to come out and say anything about it, but it clearly bothered her. We dropped it and continued with dinner but she kept glancing at it periodically.
I told one of my work friends after she left (an older woman), and she was like, "oh, that isn't her in the picture? I always thought that was (girlfriend's name)" which I clarified that it was not, and that it was my friend. She laughed at me and asked why I would do that, kind of like motherly teasing which is in line with our friendship, and then she said my girlfriend must have expected me to have her picture up instead and that I should add one if not remove the one of my friend.
I haven't addressed it with my girlfriend yet but is this really a big deal? It's just like a framed picture of my friend in a flower dress, nothing weird.
TL;DR - I have a framed picture of my best friend on my desk and not one of my longterm girlfriend