Would you go to a baby shower if the pregnant girl it’s for wasn’t there?

Some context -

I’m 34 weeks pregnant. Me and my boyfriend are very young. He just barley turned 18 (I’m 17) and moved in with me and my mom because his mom wouldn’t let him see me. We’ve been together 3 years and since the beginning she’s hated me when I’ve showed nothing but respect for her. When I got pregnant it all got so much worse and she’s tried everything to keep him from me. With all the pain she’s caused I don’t even want her in the same city but I’ve always put my feelings aside and tried to let her be family for this baby. She told us that she would help with the baby shower which I would never ask anyone for help anyways but I did want her there so all our family could try one last time to connect and get along. We told her the time and place months in advance and she never replied or showed up. Then all of a sudden she’s throwing her own baby shower and I’m not invited. My boyfriend is going.... but I’m not.. I just don’t see how it’s a baby shower if the baby and mother isn’t even there. It makes me so upset that he lets her do these things. I don’t want or need anything from his side of the family. I’ve already got everything this baby needs. They have done nothing but talk bad about me even in front of me. Disrespected me. Tried taking him out and pushing him towards other girls. I’ve never been disrespectful. I always dress nice around them and cross my legs and do everything I’m supposed to. She said she didn’t invite me too because once he told her that I don’t feel comfortable around them. I don’t. I really really don’t. But why throw a whole baby shower and act exited when she’s done nothing but try and tear us apart. She even told me I shouldn’t be happy about this baby, we didn’t plan this but I’m not gonna sit around being upset. It’s a new life I’m obviously going to be exited and happy no matter what but to her that’s wrong.