Do I understand that you are not going to the wedding?
I have my reasons for not going, and they're not up for discussion or debate.
Who do you think you're talking to? Some friend who stopped by for coffee? I'm your father, and Matt's grandfather, and I've just flown 2,000 miles to attend this wedding. Whether you want to or not, you're gonna tell me what the devil is going on here!
Matt plans to convert.
Who cares?
I care, and obviously, you don't understand, and that's why I don't want to talk about this!
You feel that you raised Matt in a certain way--your way. And now, as an adult, he's choosing his own path, and you feel that he's rejecting you, or rejecting the road you thought he'd take in life, the road you picked for him to take life. And now you're hurt because you can't understand why he doesn't want to take your road.
Okay, maybe you do understand.