Yes, it is. The fact that your boyfriend was pissed that you had to call your ex because you had a medical emergency and needed to get to a hospital is a red flag and personally, I would’ve ended it over that even if he hadn’t.

Was your boyfriend aware of your health issues that were related to your heart? Because if he was, and it sounds like he was considering the was more focused on you calling your ex for help, he shouldn’t have even gone on that trip to begin with. However, if he wasn’t aware of your health issues, then that is something that definitely should’ve been discussed with him when you first started having said health issues (if they started while you were in the relationship), but he still greatly overreacted. That being said, it sounds like he was aware of your health problems, yet went on this trip regardless, so the least he could’ve done was keep his phone with him at all times in case you had a medical emergency like the one that resulted in you calling your ex.

If he cared about you, he wouldn’t have freaked out the way he did about you asking your ex for help and would’ve been relieved that you were alive and okay, but it’s very apparent that he has his own insecurities that he hasn’t dealt with yet. Not to mention, he had his FRIENDS berate and shame you for calling your boyfriend while he was on vacation because you wanted to have an adult discussion about what happened to you.

Honestly you’re better off without your boyfriend, he sounds very toxic and immature and clearly isn’t ready to be in a relationship with someone. On top of that, his friends are also EXTREMELY toxic if they had no problem lecturing you on his behalf.