----既然你們有joint account, 你把所有的支出都放到裏麵,然後再拿出來用,這樣你老公也知道你每個月付出多少,是你在養這個小家.
"是你在養這個小家" --- will this change/move her hu*****and? It seems her hu*****and likes to control her money but not his. He is willing to spend big money on his mom and brother but not his wife.
If I were her, I would put aside some money in case. And if the marriage can be saved, this money can be put back to use for small family in the future, if not, LZ can have some backup to keep her and baby in stable financial situation.