"He has to like her more"

[DeezNuts]

I always hear people say this, that is, the guy HAS TO like the girl more than the girl likes the guy for the relationship to work. I understand that it's partially because guys are much more likely to cheat. Also, it seems for some girls basically all that they need is for the guy to be completely in love with them for a relationship to work, but for guys, this doesn't seem to be enough.

I've definitely seen this play out in most real-life relationships; at best there seems to be an equal amount of "like" between the two people, at worst the guy is a slobbering puppy dog when the girl is around.

I know I'm generalizing and of course there are a million other factors that go into a successful relationship, but is this generally a true statement?

DN