The phrase "for the right reasons" is being tossed around a lot this season. Last week after Tara confronted Jesse about the random strangers comment, he made up some crapola explanation about being ready to settle down, etc, and Tara went off and reported that Jesse is "here for the right reasons." I think Tara's definition of that phrase has something to do with whether he's really there looking for a wife or not.
Then in Jesse's diary last week, he makes numerous references to the girls he cut "not being in it for the right reasons." But what he seems to be saying about all of those girls is that they didn't make a move on him, they weren't aggressive enough. I also, I swear to god, saw some diary entry or recap of an article or interview (which I can't find now for the life of me) that had Jesses saying something to the effect that one of the girls who brought up the random strangers comment and challenged him on it just really put up a wall that he didn't have the energy or inclination to try to overcome. Moral of the story: Jesse's definition of a girl who is in this "for the right reasons" seems to mean a girl whose going to bop him and not ask any questions.