Mom ruined babyshower surprise

Hi… Idk what to do I’m about to loose my mind. Im expecting baby#3 my husband and cousin were planning to make a babyshower surprise for me since with my other two kids I didn’t have any. My mom decided to get involve and spilled the beans telling me she rather not do a babyshower because its baby number 3 and that it’s too expensive. I told my husband he was disappointed and as well my cousin because they wanted to surprise me and said why couldn’t my mom just say no that she don’t want to involve her self instead of telling me, mind you my husband and cousin were the ones going to pay my mom was just going to help to look for the place. I feel bad now because my husband got into an argument with my mom and was very upset… Now i don’t know If I should go on by my self and husband to do the babyshower or do nothing at all…