I found it strange that my girlfriend kind of compared my member to her cousins

So my girlfriend and I had sex last night, and kind of out of nowhere she says, "wow that kind of hurt a little". And I says, "well I'm sorry babe, I'll go slower". Then she says, "well that's not all I'm talking about". I was confused and asked what she meant. She said "I used to watch my cousins change when we took baths together as kids, so I know the average size of a member". I was confused again and asked "what does that have to do with anything?". She said "well, yours is a lot smaller, way smaller actually." I was shocked, and I asked "can we stop talking now?". She said "sure".<br>She has never said anything about my member size before, and she definitely hasn't mentioned anything about my cousins size before....I'm just really perplexed on why she would bring that up, and also why she kind of compared my junk to her cousins junk. I'm just wondering if I should confront her about this later, or just let it go.<br><br>Edit: I'm just going to have to break up with her. Thanks to everyone that has commented.