Q: In this task, you are given a Reddit post as a text. Your task is to generate a title for this text. The title should start with "TIFU by", followed by a situation that caused humor. The title should contain 7-12 words, ideally.
Text: edit: thank you everyone. i really wasn't expecting this much support. i'm going to make contact with the university to see if theres someone i can speak to about the whole situation to start with and then can decide on any other actions from there. if i could give everyone gold i would but i'm poor so my most heartfelt thank you shall have to suffice.
thank you reddit <3

like most this happened a couple weeks ago now on my flatmates 20th birthday.

i'll start by giving some back story. i've been with my girlfriend for almost two years now. we're in a long distance relationship being that she's up in the north of england and i'm down in the south both for university.
we've always found it hard to deal with the distance and i can say honestly and regrettably that i treated her awfully when i first came to university this year now i look back on it. 
i live in a private house due to getting in through clearing there wasn't any room in halls so due to there being so many people in my position i ended up getting thrown in to a pretty nice house which sadly isn't cheap with some random people i met about 5 minutes before.
living in this house has been great and not so great, its 2 boys including me and 4 girls. as you can imagine this didn't go down well with my gf. moving on she got over it, however one of the girls in the house is lovely however has had a crush me on the entire time we've lived here.
on multiple nights out asked me, would you have sex with me, can we go have sex etc...
i've always just thrown it off to her being drunk and completely disregarded it because to be honest that's what i do with things when i don't want to think about them to avoid getting stressed.
skipping a few months forward from there to a couple weeks ago now on her birthday. we've all had pre's here then gone clubbing. now at this club its gone from being 20 of us to 4 of us, being me this girl and two other friends of ours. these two people decide they want to get a kebab but the birthday girl really wanted to stay longer. me trying to be nice decided ok fine we can stay a bit longer. so these two people left and now its just me and the birthday girl in this club. she immediately starts buying me drinks and after about 6 jaeger bombs a few tequila shots and a headfucker, i was pretty much paralytic. 
she'd been all over me the whole night to which i had unknowlingly sent my girlfriend a snapchat of this girl making out with my neck but because i was so drunk didn't even realise. 
moving on eventually it starts to get fuzzy and she's spent so much time pursuing me and i'm so drunk that i forget who this girl is, we kiss. (this girl is not my type in the slightest) from here she ends up getting us a cab home and continues making out with me in the car. i had no idea what i was doing at this point so guess i must of been kissing her back. when we go back i stumble up the stairs and this girl then follows me baring in mind her room is on the ground floor and mine is on the third. i get into bed and she joins me. now i presume she went to the toilet because i got into my underwear and then was about to go to bed when she came in and started stripping off. she's now stood there stark naked and pushes me on the bed and you can see where it goes from there. 
i wake up the next morning completely confused with no idea as to what really happened last night.

i never told my girlfriend what happened because i can't admit to myself it did and i don't know how to process it to be honest. now today out of the blue as i'm writing this, the girl (my housemate) and her friends are currently blackmailing me into telling my girlfriend i cheated on her and say that's it's all my fault so this girl doesn't have to feel guilty about it. 
by telling my girlfriend it happened it's going to ruin our relationship (obviously i know and i know i should of spoken to her about it ages ago but due to events when i was younger makes it very hard for me to talk about this sort of thing). i feel awful about this whole situation and i know i'm an awful boyfriend. but essentially i don't know what to say to her and i'm being forced to do it in before 10am or these girls are going to tell her instead.

 

i know my grammar probably sucks, would appreciate if comments weren't too rude about this, i don't know what i aim to achieve by posting this other than maybe other people don't get yourselves into this situation, because i literally don't know what to do and have no one to talk to about it other than my parents <-- lol at my life there 

update : we broke up, but due to the circumstances will attempt to maintain some sort of friendship over time. 
               i also really appreciate what you've all been saying, this has been a really tough situation for me to 
               deal with so thank you all.
A:
TIFU by Cheating [LONG]