Definition: 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.
Input: Text: long story short.

my girlfriend's birthday was tonight and it's been 11 months now,almost a full year of us being together

at herbirthday party,some people were already there when i arrived i casually greet everyone and i ask them if they saw her anywhere.

they tell me she's in the kitchen so  i go there and see her making some finger foood.. 

i walk up and kiss her right away then say happy birthday with a huge smile on my face.

in literally 1 millisecond i open my eyes seeing her in disgust and i am thinking something is wrong here..

my gf just walked into the room and our eyes met while im kissing her twin sister.
on ~~her~~their birthday.

she's not responding text's or calls even 4 hours after the incident
and i thought after 1+ year of knowing them i could identify which one was who

turned out wrong

edit: she called me back today after work! :) she told me that she realized she overreacted and that i should be more careful in the future

TIFU by not recognizing my gf