i was invited to iftat many times by a Muslim friend and his family. it's totally normal. once i had been even at a big gathering(around 100 people )they usually hold around the middle of Ramadan.
so accept the invitation and enjoy some very delicious food
Yup, absolutely. I invite friends all the time. You should def go!
Great thanks guys. As I said I'm totally ignorant here and I really didn't want to make my buddy's wife uncomfortable in particular. But that's my fears put to rest. She is an absolutely amazing cook so looking forward to it now.
Good luck to you guys observing it! Honestly don't know how you do it.