<human>: My girlfriends parents have been divorced for a while now but her dad never really started dating again. Well he finally found a girlfriend and wanted his kids to meet her. As a caring boyfriend I decided to accompany my girlfriend for moral support. Turns out my girlfriends dad is banging my ex girlfriend from high school. No biggie right she's only 20 years younger than him. My girlfriend was pissed about the age difference. So I told her at least her dad and I had similar taste. She was not amused when I explained how I knew her dad's new girlfriend.

Can you give me a shortened version of the text?
<bot>: supporting my girlfriend meeting her divorced dad's new girlfriend ends up being my old ex girlfriend from high school. Eskimo bros!