My friends boyfriend is actually annoying.

So this might be quite a long story. Btw we’re all high schoolers.

My friend met her boyfriend 6 months ago and they started dating straight away. They didn’t meet online so that’s a plus. It was fine for a couple months until they just started being obsessed with eachother- some examples: all my friends TikTok reposts are about boyfriend. I mean all of them. All she talks about is boyfriend. And they’re always hanging out, and I’m so serious when I say they have been with each other (hanging out) every single day since the 20th of July. Every. Single. Day.

Bear in mind we have school, coursework, mock tests for the bf are coming up and he should be revising.
As well as this, I notice if I ask her to hang out (we haven’t since like a month ago smh) she says maybe, I’ll have to check. But whenever her bf asks she says yes can you come right now please.
Also I’m close with her parents and they have previously stated that I can come round whenever and I don’t need to ask and I can sleep over how ever long. I also seem to notice I’m getting caught up in fights with my friend and her mom. Her mom keeps telling her she is worried about how reliant she is on boyfriend and then my friend gets very mad and angry.

Also when I was away with my friend, she was calling boyfriend. And then the boyfriend texted me privately when she hung up as we had to go to dinner (as we were on holiday tg) saying that she was being different and not talking and calling as much. We were on holiday. Omg..

another thing is sometimes if her reposts aren’t about the boyfriend it’s about being left out. Me and my best friend (some background info: me and best friend are closer and have been best friends before friend was in our friend group, not to mention I was previously in a friend group with my friend and I got heavily left out by her) but anyway, me and my best friend asked her three times last month to hang out, and my best friend asked her to hang out as-well. Every single time without fail she couldn’t. And every single time she made plans with her bf. For example, she couldn’t one time as her cousins were visiting and she needed to stay with them. She then hung out with the boyfriend while her cousins were there. And then she reposts about us leaving her out.. not to mention that in school no one is left out and actually they talk to eachother more than me lowkey but whatever. Also she had a sleepover with my best friend for the past two weekends and her boyfriend was there the last one obviously. And she has stated before that she prefers her bf, which I don’t really care Abt because me and my bsf are closer anyway. Me and bsf have talked about how obsessed she is and are kind of worried if he were to break up with her what would happen. This is just a bit of information about my situation, there’s much more but I can’t write it all down here obviously. What do I do? And how do I make her realise what she’s doing?