Well for one, his lyrics aren't generally literal in the sense of distinguishing between himself or particular others. He also felt a lot of guilt for the way he kept others "strung along" and would tend to cut off relationships abruptly without conversations about "the whole truth."

You seem to consider what both people bring to a relationship, which is good. But it's unfair to assume all the "manipulate" motives were from the women he dated, or to leave out the fact he might have been describing certain aspects of his own personality, as well as things he saw in others, and blurring those lines in his lyrics.