(UN)Suportive mom

Okay sorry if this is a little long but it’s really affecting me.. my mom had always been a wonderful woman. Always supporting me, making sure I am happy, etc.. so anyways, I started dating this guy when I was 14 and she told me she doesn’t like him. I always wondered why. We were kinda off and on when we were 14 because well.. we were 14. Fast forward to now, we’re 20. He proposed to me and we made it Facebook official and my mom texred me that night and said, “everyone’s texting me asking me about if you’re really engaged and I don’t know what to say.” Like what??? Then she just doesn’t support anything we do. She literally refuses to say hi to him. We were all gonna drive downtown to see the tree lighting and she said if he’s coming with us we can drive separately and pay for $25 parking when we could’ve comfortably drove in the same car and split the costs.. I told her that were getting our first place together and all she said was “that makes me sick to my stomach, when you break up whos place is it?” And she sends me single guys all the time saying she wants me to call them and go out. Idk what to do, should I still talk to her? Or should I ignore her? It’s to the point we don’t want her at our wedding or even come see our new place. Idk what to do