<human>: Can you provide a brief rundown of the text in within 3 sentences?

I know I'm young but it still applies to many relationships. (We have been dating for 4 months now. Healthy relationship, I might add)

First thing. Last Sunday, I had a sit-down talk with my girlfriend with open communication and one of the subject was ex-boy/girlfriends of ours. The subject didn't effect me at all. I took into consideration what the boys had done wrong and I haven't been jealous because I know she's mine. SHOULD I HAVE HAD THAT TALK ABOUT EXES?

Second thing. Ever since Sunday, she's seemed pretty mad about everything. I've been the same person I ever have been and I've noticed negative differences in her personality. I talked to her about that last night and she said she just sees my exes every day and gets instantly pissed off. I asked her why she takes her anger out on me and she blames me for dating them. I explained to her they were MISTAKES. We were fine after that conversation. Then today rolls around. She's mad again. We were having a conversation about it and in the middle of the conversation, she says "Don't say that, you sound like Tyler" (her ex), obviously trying to piss me off.

What the hell do I do?! 

My plan of action is to ignore her until she realizes I'm a great guy and I treat her like a god damn queen. Yay or nay?
<bot>: Had a conversation about exes with girlfriend 4 days ago. She has been pissed ever since. I've been fine. Do I reassure her that she is mine or ignore her until she realizes I'm a great boyfriend?