Can't just vs. Just can't [duplicate]

Solution 1:

Just can't implies that the speaker is more willing compared to Can't Just, which sounds rather sympathetic.

Here's an example:

Say I see a hungry dog on the street. Saying "I can't just ignore him" implies that I would have feelings of guilt if I ignored the dog, even though I may be hesitant to help, whereas "I just can't ignore him" implies that not only do I want to help the dog, but I am fascinated by him.

So in your example comparing the two guys, the usage of can't just shows that while Guy #1 may be handsome, the person being spoken to has to give Guy #2 a try, which is in contrast to the usage of just can't, which evinces the feeling that Guy #2 is very handsome - even more so than Guy #1.