I think that, despite what this article infers, if a guy has a good, solid thing that he really cares for, he's going to bypass all his "generic guy tendencies" or battle solidly with them, to keep what he truly desires- you.
It's nice to try and soften the "blow" to our egos, but the truth is, if he doesn't think you're the one, you won't be enough to keep him from acting how he wants.
I'm so glad you said this. I especially don't buy the "too into you" thing. I think that's some bull.