Aren't there other times, he can make time for you?

American Football is an All Day Event. First game 1pm est. Then 4pm, then 8pm. Sixteen weeks, playoffs in January, thanksgiving day and first Sunday in February is the Super Bowl.

Lots of appetizers, some drink, many drink, it's a Sunday intensive.

My stepmother didn't allow my dad to watch his beloved sports, of any sport. That was horrible to see happen to him.

If you cannot embrace it, I'd recommend finding friends time on Sundays, do for yourself. It's definitely not a reflection of how he feels about you, this is seemingly his passion. ...accepting this of him seems a loving gift to him.