Believe me when I say Hufflepuffs are kind and would do anything for you. See, if you have a reputation, just tell them to only show affection to you in private. Unless, of course, you're Kal. Kal kisses his Slytherin girlfriend EVERYWHERE, and I honestly don't know how his girlfriend deals with it. of course, take them out for butterbeer and stuff, but you know. If you have a reputation, have them maybe not kiss you in public if you aren't comfortable. You have to make compromises in a relationship though. So maybe let them hug you, or hold your hand.