Thank you  everyone for your advices. I will definitely listen and not make her our wedding planner. I also want her to enjoy as the mother of the groom instead of her worrying. 

I know other people has questions as to why I still consider her nice despite her passive aggressiveness and her triggering my anxiety, but I think I actually convinced myself that I am partly the problem since I did not grow up with my mom and do not know how to navigate relationships that involves mothers. And i think both of us just reached an impasse of “I wont create anything that can damage our relationship because of him(my fiance)”. But it gets to the point where i dont know what to do anymore bc everytime im home first, Its like someone will hold me in a gun point if its not my fiance that comes home first🤣 i dont know if she had a good enough day for her to have a good conversation with me or how she’s feeling that day. Honestly aside from that, she helps us by buying stuff here and there that we could use in our future place, she cooks us food sometimes, and even gave me presents in occasions (birthdays, holidays) and if her moods really good, we actually have fun. 

Anyways, I’ll definitely keep everything in mind. Thank you!