TRIGGER WARNING ABOUT ABUSE

Is this verbal abuse? I've been in a long distance relationship with my girlfriend on and off. We recently got back together on the 19th and arguing again and this is by far the worst it has gotten. We are broken up now, obviously. These outbursts tend to happen when I bring up issues that are bothering me like when she acts cold towards me, doesn't tell me I love you back, flirt with me. And she knows this and it's like she does it on purpose to hurt me. It's never her fault and it's always my fault and I end up taking the blame. She's called me a narcissist and immature in the past, also. The app she is referring to is a dating app. For a backstory, she ghosted me for 2 months and I downloaded the app again. I never deleted the app after we got back together but I never used it and she doesn't believe me. And that's her reasoning for saying all of this to me. Even though we talked about it already and she said she would try to "forgive" me for having it.