I thought if it that way as well (still want a divorce though, grumble grumble). Quinn has been way too useful up to that point for me to kill him because of some half-assed battle droids. There is no way he would think those sissy things could kill me, he wanted to lose, and possibly have me chop his head off so he'd not feel as guilty anymore. Besides, if his loyalty is so strong that he would at least give a decent run at killing his wife, killing Baras consolidates all that loyalty to me, pretty useful to have. I could send him to go shoot his own mother at this point, and he'd do it.
Personally, as a female SW I'm tempted to put a lightsaber through Jaesa because there is no way that girl isn't going to try to assasinate me and become the Wrath herself. No. Way.