<human>: Condense the text into a few key points

I've been with my girlfriend for one year,four dating, one in an official relationship. We have a great loving relationship and i intend to marry her and she does too. 

I've know her parents since a couple of months after we started dating, her Father doesnt really seem to like me but we hace a cordial relationship i have a good relationship with her brother and her mother. 

This is my senior year and in my country there's a tradition called "Senior Trip" in this trip we go to an island to drink, dance and party 24/7. For three days straight. There are a lot of people there and a lot of the girls that attend are what you could call "happy" meaning that they have sex with anyone. To put it on perspective every year at least 3 girls come back pregnant. Her parents don't want her to go. I want to go and i've already decided that i'm going to go altrough i know that i am in danger of failing and doing something i will regret. 

What should i do now ? Can this relationship last ?

Thanks in advance and sorry for any errors , english is not my first language.
<bot>: I'm going to a senior trip my gf isnt going. I already decide i'm going. I know i could fail. She doesnt want me to go. How to save this ?