u/Affectionate_Dig2138

I've been in a relationship with my girlfriend for a few years, we've always been really close. It was a little rocky at the start, but we're still going strong. We havent had any breaks or anything, we do fight/argue pretty often but we always make up quick. We hung out with a couple friends recently, it was just a casual night, but the very next day one of the friends messaged me about her behaviour. She'd gotten upset at me after I told her I couldn't pick her up at that moment, smacked me a little, and then pretended I didn't exist for the rest of the night even after I drove her home. This is pretty typical for us, and none of my other friends had mentioned that it was weird or whatever. Maybe I'm overthinking this, because the friend that messaged me mostly asked if I was ok, comfortable with her, all that. I've just been thinking about it a lot, I think I need to get it off my chest. She does get upset pretty easily, especially when it comes to me saying no to certain things. Maybe I just need to talk to her?