Boyfriend's mom jealous ?

I've been with my bf for over 3 years now, & one thing I've learned is that his mom loves drama and I am the complete opposite.

The other day, I was waiting at my bf's house in his room until he was done with football practice. He was taking longer than usual, so I looked up his location to see he was at in n out. I called him right away bc I wanted some too! His coach answered & said he has my bf's phone bc he forgot it. LONG STORY SHORT, my bf's parents would not stop talking about it & knowing my bf would be in a bad mood, I texted him before he came home that I was just warning him what his parents are doing. He came straight in to his room & asked his parents multiple times to stop talking about it. BUT, he did tell me willingly without me asking. His mom realized that & kept asking him what happened but he refused to tell her. She got SO mad at him & it cont the next day. I came over to his house the next day thinking nothing of it. I knocked on the door & his mom opened with the MEANEST look on her face, then proceeded to give me a fake "oh, hi." I was taken aback so I didn't say hi. Later that night my bf talked to both his parents separately, & apparently both told him after they made up that I should say hi when I come over because I don't ? Only my bfs mom was home (not his dad) when I came over, so she HAD to have told him that I didn't say hi to her. But she made it into this whole big deal to my bf, where my bf talked to me about it. I was so upset the whole time but he was so understanding. I told him the look she gave me & he understood & said he would talk to her about it the next day, but he never did since he was busy with football.

Every since then, she's been pushing to drive him to & from practice every day, even though he has a car. & when she does drop him off & he asks me first if I can pick him up, she'll get super jealous. Even a week ago my bf told his parents when his first game will be (& me), & before I could say anything she blurted out if she could wear his jersey. I just feel like I'm dealing with a really immature mom, & it sucks because my bf doesn't see it that way sometimes. Like there's been so many instances of her being overly jealous, but I cant say anything because that'll make me look bad. There has been a couple times where I've been so upset from what she's said or done about me, & I tell my bf. He confronts her, but she makes it seem like she didn't do shit at all to my bf. Idk what to do honestly...I feel like I'm back in high school dealing with her.