Mainly because they are just so bloody cute with one another!
However, a lot has come to light now... being Valentine's Day and all, Hailee uploaded an adorably loved-up pic on her Snapchat which seems to be with a special someone.
Clearly with all those tattoos, it's not Niall. SO WHO IS IT?
Hailee stans, we need your help with this one. Have we missed something major? Can you investigate for us?