Is there a different way of looking up how much heat you donated to your protector other than through your protector directly?

No

Unless you make a log of how often you donated heat yourself, no.

do we still get 1 loyalty point per active day?(not in an alliance)

Yes.

any other reason I would gain loyalty besides donating heat and logging in daily?(besides if i were in an alliance)

Nope. Unless you mean the MDShop boost for loyalty but that is of one use.