This is the impression I always carry with me about it (based on what seems to be the most recent version of the story). I really do feel like Bruce uses Jason in such a way to make it hard for either boy to have a good relationship. And it really does feel immature to a frightening degree. (And I don't think he's totally over that either--I think Alfred's absolutely right that a big part of Steph!Robin was getting Tim's attention and getting him back.) It's just hard not to read it any other way. Sometimes Bruce really does act like a vindictive 7th grade girl.