AIO about my best friend being too codependent

So my(24f) best friend(23f) has been coming and staying over my house over the weekends so we can watch Love Island together. She’s always been a bit boy centered but not to the point where that’s all she talks about. She been dating her current boyfriend for about a three years now. He moved away for work a while ago and she’s been telling me how it’s hard for her to do long distance.

When she first came over we were talking and i heard her boyfriend say something about our convo. i didn’t know they were on the phone and we were having a conversation i would’ve rather him not been apart of. I look shocked and asked her, “are you on facetime” which she just replied “yeah, it’s just Max(her bf)”. the conversation wasn’t too bad so i just ended it there and kept in mind she was on the phone.

i thought she would eventually hang up the phone but everyday the past 3 days they’ve been on the phone ALL DAY! They literally will just sit on the phone even if they are both busy doing other stuff. Then what made it worse is we were going to bed and she stayed on the phone. they literally sleep on the phone together. Once i realized she still wasn’t hanging up, i asked her, “did you forget to hang up” and she responded, “no he likes to take pictures of me when he wakes up.” i responded, “im not comfortable having him on the phone all night, when im not awake.” she said,”it’s not like he’s in the room.” i pressed the issue and she kept insisting i was overreacting.

i just let it go finally but she is coming again this weekend and it still really bothers me, i dont know if i should bring it up again or if im just overreacting.