<human>: TIFU by reading TIFUs. 

My girlfriends parents were over, and we're usually chill. Today, (just like any other day), I was so engrossed with TIFUs that I literally did not pay attention to anything related to anything. I heard my GF repeating the same question in the background when they left, but I just kept nodding and secretly hoping it was a Yes/No question, but realized it wasn't when it got incessant. I kept reading though, and when I couldn't take it anymore, I yelled the last thing I read.

Where's the TIFU? The last thing I read was something about a big bootied beautiful lady, and the question was if her mother looked different today. (She had been facing depression for a few months (the mother), and was getting worse as we went on.)

Could you distill the essence of the text into 1-3 sentences?
<bot>: GF asked about her mother looking more depressed than usual, I said she looked smoking hot, and had a good butt.