Did I do anything wrong?

So earlier today my gf asked me an question about my sexual past, (she asked if i did anything in a public bathroom). i told her that i don’t wanna talk about, because i don’t like bringing my sexual past into my current relationship, she had gotten all butt hurt about the situation calling me dirty etc. so times goes by and i talk to her in person about the situation i told her “dont let my past define me as a person”. To sum up what she said… she was talking bout how she sees me differently now. We continue to talk and she keep saying stuff that was getting up under my skin so i just left the room and walked away. I told her i left because i wanted time to myself and i wanted to prevent myself from yelling at you. And now she is saying that all i do is be alone 24/7.

edit: she also said that i was in the wrong for walking away