And while I’m not exactly against this ship, I’m not in the mood to watch Rebekah get hurt by it.

Same here. For once, I would like to see Rebekah have some power in a relationship.

I need to know that he’s just not going to blindly support Klaus either.

I don't think he will, after this. Haley and the child are his priority right now, and Elijah will work with Klaus as long as they're both trying to protect mama wolf; but Elijah won't trust Klaus to put anyone else's interests above his own.