I (22f) have been dating my boyfriend (36m) almost 8 months now. A couple months back I found out he had been being dishonest and is serial cheater. But after time apart and working things out the best we could, we are involved again but in a version of polyamory all our own. For a month or 2 now there has been multiple times were my boyfriend has blown off plans with me entirely, or said he’s “on the way” every 30 minutes for 3hrs until he finally comes back home. This only happens when he’s at this friend, Alex’s, apartment. After I found poppers in his dresser drawer and numbing anal lube in the car, it was confirmed he’s been sleeping with Alex. Now, in my book when ur hanging out with a dude overnight, multiple times a week, more so then you hang with your gf, AND ur fucking him. That’s your boyfriend. So when I called my actual boyfriend to confirm he could give me a ride home from work, (I had seen A LOT of text notifications from Alex on my guys phone while being dropped off) he said he was chilling at his homies on the river. So I responded with “Ah that’s sick have fun with your boyfriend”. My guy exploded calling me a “disrespectful bitch” and bailed on giving me a ride home which is an hour away from home at midnight. He said I was being an “ungrateful entitled dramatic”. and that there wasn’t a deeper connection there so he was just a fuck not his boyfriend and for me to walk back. But like I said if he spends more time there then w me, and he fucks him?. I don’t think I’m in the wrong at all. (Eventually my roommate got me from work 2.5hrs after closing btw) Am I being unreasonably snarky with the my boyfriend’s boyfriend thing or am I just being real? After all the cheating I feel I have the right to make a jab once. Am I the asshole?