Do I Have A Right To Be Pissed Off?

My steady has cheated on me at least twice throughout the course of our relationship. I say "at least" because those are the only instances I'm aware of/she has admitted to. Both times were blamed on excessive alcohol consumption.

My gf gets upset with me when I bring it up in a conversation, but doesn't seem to give three sh*ts if she's the one referencing back to one or the other. She'll say something like,"Remember that guy?" At this point I'll blink and giver her a, "What guy?" face. She continues,"That guy, you know, that guy who [insert details of infidelity]." Inside my head: "Oh, that guy. The guy you sucked face with. The guy who had his fingers up your pussy. The guy who's c*ck you jacked off, probably even sucked off. The guy you claimed to have pushed away because you were able to magically shake off the intoxication that supposedly lead to the whole ordeal, if only for a moment, to remember me. That guy." Her, usually with a laugh: "Well [insert name of friend] said [insert casual teasing]. I told [insert name of friend] to shut up." When she broke the news to me she seemed more bothered by the fact that her friends would find out and think she was some floozy more than anything, and the fact that the encounter had gone so far when she only intended to kiss him in the first place. Ha ha, because swapping spit with someone while in a committed relationship doesn't qualify as cheating anymore? Anyway, it pisses me off that she can talk about it like the whole thing shouldn't/doesn't piss me off. When I mention it she goes psycho, says it makes her feel dirty and whatever and gets mad at me! wtf. So there's this event coming up much like the one where the last episode of disloyalty occured. She told me of her plans, lots of drinking before the event, followed by more drinking at the event, possibly drug use. Oh, and a few of her exes and some guys that have been hounding her because they want to tap her will be there too. (She promised she wouldn't hang out with them anymore, and not because I asked her to.) Fun. I got angry. She distracted me with sex. Later on she mentioned her plan again and added how much more smashed she'll be because she hasn't been on a drinking spree that big in quite some time, probably not since she cheated, and laughingly, "Imagine if I take the drugs too!" Funny, that's exactly what I was imaging. I got angry. She got angry. End of story.

Do I have a right to be angry/suspicious/ jealous, or am I overreacting because, in your opinion, she's a prime candidate for sainthood instead of a no good sl*t?

Do you think it's normal?

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