/jp/ - Otaku Culture

So, I was at a house party with my boyfriend on Wednesday night. We flipped a coin and decided that I was the designated driver for the night, so my boyfriend proceeded to get smashed off his ass. Later in the night I got thirsty and made my way to the fridge to see if there was any pop. The host of the party was in the kitchen as well and I carried on a small conversation with her about how well the party was going and how great a time everyone was having. After a few minutes I retired from the conversation because it was getting pretty late and it was about time for me to collect my boyfriend and go home. I walked back out into the living room only to see my boyfriend kissing another girl and groping her under her shirt. Pissed, I stormed away to the car and left him.

Did I do the right thing /jp/? He was my first boyfriend and I thought he loved me! ;_;