Argument with the husband

So this is my situation. I'm 34 weeks pregnant and we have been trying to save money for babyshower, things for baby and expenses when baby arrives since I will not get paid while on maternity leave. We have family from another country and they think that money in the US grows on trees. So this family member (aunt) tells my husband that she noticed his brother needs a backpack because his is ripped and he says "he doesnt like to ask for money." Fine, husband has a soft spot we have to buy the brother a bookbag. As if that wasn't enough the brother says that he will give the bookbag we give him to his wife because she doesn't have one and needs one. Isn't that asking for things? I was so furious because my aunt costed us $60 (saw them on Amazon for $25 + shipping) thats two and a half boxes of diapers for my kid. Well I told her and she acted as it is my fault talking about " and you are upset because of THAT?"  Well she told my husband I told her I didn't like what she did and who knows what else. Ever since he told me he had a conversation with her he has been giving me the silent treatment. Hasn't touched my belly, asked for out baby (oh today he did towards the end of the day), no good night, no kiss and today we have 2.5 yrs of marriage oh and our babyshower is this weekend. To the point that we were going shopping for his outfit and he said he was going on his own. 🙄 I didn't make plans because is so weird going out with someone that is mad at you. Am I wrong for voicing out my frustration with my aunt? Or not making his brother and ridiculous wife whom I never met part of my budget and helping their "need"? Be honest I can take it. I'll tone it down if my hormones are getting the best of me. Lol