I will say that I think the writer had some negative views on male/female relationships.
There are two writers. Both male. (One is Martin Valente, the director.) It's possible, and the fact that we're talking so much about how Chloe and Stephen's relationship could have been a) better developed and b) presented in a more romantic way doesn't help their case. Then again, they could just need a lot of practice at writing women. Not all male writers have this problem, lots are terrific at it. But many... aren't. ;)