Boyfriend(25M) doesn’t want me(23f) talking to my female bestie

I’ve dated two guys in the past, and both had an issue with me spending time with my friends. They wouldn’t say it outright, but I could always tell they weren’t thrilled when I had fun without them. I don’t drink or anything so it’s always just harmless fun.

Yesterday, I was on a call with my girl best friend and didn’t pick up my boyfriend’s call. When I finally got back to him, he was pissed—to the point where he straight-up told me to choose between talking to her or talking to him. Basically, him or her.

I know this is a huge red flag, but for some reason, I’m struggling to come to terms with leaving him. When I really think about it, I wonder—why am I hesitating? Am I scared of what my friends will say? Ashamed to admit I stayed in a situation like this? I don’t know, but I hate that I feel this stuck.