Help please!! Best friend and her boyfriend...?

Okay so... my friend moved here like 4 years ago and we've pretty much been friends since she moved here, and a few months ago she started dating this guy and compared to her past relationships this guy is great. He makes her happy and actually talks to her and etc etc... but I can't help but think he's a little "too" much better because it's taking time away from her friends.

Every weekend they're together and I haven't had her over to my house in about 5 months. That's not even the half of it... me and my friends have sorta been trying to give her space and now she won't even talk to us... we'll walk past her in the morning and we don't even get a "Hey".

I've tried a few times to talk to her about the situation but the only time I pretty much see her is in lunch where she, her boyfriend, our friends, and I all sit at the same table and she mainly pays attention to him and him alone.

I've also tried to txt her a few times and we used to talk via txting everyday but her boyfriend's mother doesn't like it when her guest's txt so since she's always over to his house I can't txt her... but whenever she's with us... she's txting him...

Me and my friends really need advice on what to do in this situation.. please help!