i need advice, please help

so i’ve been with my boyfriend for almost six months now, we’re both sixteen and he’s about to turn 17 in october. he’s grounded rn and has been for two months because his mom found a live photo of me twerking to a song that had come on. i’ve only seen him once this entire summer, and that’s because she was feeling generous idk. but she has told me that i would be going with them somewhere, and then the day of its as if she doesn’t exist. she won’t respond to my texts or pick up my calls, im just trying to make sure i’m still going. and then the next day i see posts of her family (including my boyfriend) doing just the thing that i was supposed to come along with. then my dad had had enough and he texted her, and the next day my boyfriends mom’s MOM texted my dad saying she was going to call the police if my dad kept “threatening” her daughter. like she is 30 something years old and has to hide behind her mom? like isn’t she supposed to be an adult? anyway, i don’t know what to do. i feel like just blocking her on everything and wait till school starts back to see him, because i’m obviously not going to see him any other time.