I feel like the 4th one is thinking about cutting it off. ;A;

And my personal answer is; none of these.

None of these sound or feel natural. It is almost like this person has never been in a relationship 'cause I can tell ye, no one is gonna react like this (except maybe nr. 2, but then you might not be doing your part in the relationship if that is her attitude). Though I am guessing he is thinking of the onii-chan approach so all of them should be quite young and childish in some fashion... okay, I am overthinking this to bits. Just ignore me rant'ere eh?