Daughter's Wedding Reception and Family Drama

Having a pretty bad mental health day . My Daughter is having her wedding reception party today which she still invited me or her Mamaw which who I live with and caregiver she has stage 4 cancer . She got married about 2 weeks ago and didn’t even tell me about to a guy she has been with for 4 months he isn’t any good for her but he has her dads side of the family fooled she would of never did something like that before without her Momma there we have always been best friends till he came along I gave him a chance but the first time I didn’t agree with him he turned . Her mamaw who is help throwing the party ask if we was coming but my daughter didn’t told her she would have to don’t even know the time and she isn’t but 3 miles down the road . My stomach has been in knots all week and mental health at its lowest daughter is 22 my son is 27 she haven’t even told her big brother and if I go and not mention to him he will blow up on me and her when he finds out . I know this is a lot I just texted but my head has a lot of thoughts going through it . I want to like her man I try to like everyone but I can see the things she can’t my mom sees it her brother does and so does my dad . I feel like crying and screaming at the same time . I thought it was bad when my babies was teenagers but they have hurt me far more as adults .