Is OTHER wrong in the post ? POST : So throwaway account, but my girlfriend got asked to go to a bar with an old coworker. She was friends with him before, not sure how close they were though. They haven't spoken in probably a year, but he randomly dmed her on instagram asking her how she's been and if she'd want to hang out.

She took this as just friendly conversation and said yes, so he made plans to go to a bad with her.  He ended their conversation with "Cool! it's a date!" So she had to break the news to him that she had a bf. 

We are in a LDR so sometimes stuff like this happens.

She was still going so I said "and ik this is dumb and coming from a concerned bf perspective since u know this person, but watch your drinks"

I know it may have been too much, but i've never met the guy and she lives in a big city. She knows what she's doing, but i couldn't help voicing it

I know im definitely part of the asshole here, but she became very upset with me and is now giving me the silent treatment. So now she's going to a bar with a guy i don't know and not talking to me...

Am i the asshole?