am i in the wrong for being mad?

a year ago me and my gf of 4 years were having a conversation over the phone about our relationship, we were having a hard time with some things that have happened and were deciding if it was best to end the relationship or not. in the middle of this conversation she decides to send me a random 5 second clip of some kpop guy dancing. she did this over and over again, not responding to any of my messages. it made me feel insanely disrespected and like she didn’t care that our relationship was possibly ending. she never apologized, just moved on. today she sent me the same clip. she also sent a picture of her with a stupid filter as we were talking about this today. this is our conversation: