FH is driving me crazy

We have less than 3 weeks to go until May Day and he decides to add his nephew as a GM, his niece as a Reader and invited 4 ppl this week to our wedding. AND...he wants to pay for 3 tux rentals for his brothers and nephew...
bang:

Oh...he is...

Thanks for letting me vent.

OH our FH's, what are they thinking sometimes? Are they thinking at all?