I love it! I have a nearly identical story. I was dating a younger guy about ten years ago. It was good fun (he was gorgeous!) but I knew there was no future due to the age gap. I had started thinking about how to wind it down but I was delaying as was hooked on the sex.
Anyway it came to an abrupt end. We were out for a drink and he invited his friend from home out. This was unusual.
The friend came in and had eyes on stalks looking at me. It was unnerving. The pair of them proceeded to get really drunk and behaving like a pair of apes, showing off etc. A couple of times I decided to call it a night but he persuaded me to hold on, pushing back the restaurant reservation.
Finally he started kissing me in front of his friend and groped me. Absolutely disgusting. I pushed him off hard and told him to go F himself, grabbed my stuff and ran off for a taxi.
He chased after me, yelling abuse and caught my arm at the taxi shouting in my face. The friend was roaring laughing at it all. Very ugly. I got into the taxi and he pulled the door open. The driver got involved then, I told him to just drive.
I could not believe this was the charming guy I'd been having dates with for the last couple of months.
Imagine my surprise the next day to see his caller ID flash up. Out of curiosity I picked up.
Himself and his friend had continued to get completely out of their minds and then drove around in a taxi trying to source some drugs. They racked up a bill of 70 pounds and decided to do a runner. Afterwards he discovered he had left his laptop behind which he really really needed immediately.
The taxi driver told him if he paid 100 he would return it.
I laughed so hard and hung up the phone.