<human>: Can you succinctly summarize the text in 1-3 sentences?

I'll use my post for relationships as an example.

We are both 21, been bf/gf for about 8 months now and things are good except...she would get angry at small things and have petty arguements with me. For example, she constantly pokes me one day and makes fun of me - thats alright. But when I poke back she gets upset and stops talking. I tried talking to her about this and it doesnt....make sense to her.

And then I thought if I made sense to anyone. She tells me she loves me right? And I love her too. She is the person I share a bed with, sleep with, take showers with etc etc. I'm not going to get angry at someone I love unless she would do something like cheat on me.

She gets angry at things that are out of my control, and then puts some of it on me. For example, she needed help with an application for her university, shes frustrated that she doesnt understand it, and directs questions to me about the universities policies like I would know it. And when I don't have the answers, she basically tells me to fuck off. Its never actually fuck off, but its more like ''GO'' and stuff.

I don't understand why I deserved that tone. Or the verbal lashing. I don't understand how she could direct it at me.

Its just not....rational anger?? Its like the farmer who shoots his one and only healthy horse because it wont plow his field. Or someone punching a mirror because they are upset. I don't understand why people do it. And its difficult for me to stay in a relationship with a person thats angry and irrational sometimes. I explained this to my girlfriend, and she says thats how all girls are like.

If I am to spend my time and possibly my life with someone, I don't want them to ever be like this....am I being realistic?
<bot>: I don't understand why people behave irrationally when they are angry. And how they can be perfectly fine in another moment when they speak to someone else.