How do you deal with your husband when you ask him to join co birthday party between you and your uncle then he used F word.? My family is organizing bd lunch for me prior my BD as my uncle and I have same birthdate.

Maybe he already planned something special for your birthday and this co-birthday party is on the same day and therefore disrupting his original plans. Ask him when he gets home, face-to-face, calmly and see if you two can meet in the middle in terms of birthday plans. As for the expletive, since you are so upset about it, it must be a rarity on your husband's part - he probably didn't mean to use it and was frustrated or annoyed. It is still wrong for him to use the bad word but I honestly feel he didn't mean it.