Lois...is with Jimmy? You mean...in a relationship sense?
LOL! No Lois-and-Jimmy hanky-panky.
Jimmy was severely injured in the last episode and Lois is (apparently) his next-of-kin so she's accompanying him to Star City for surgery.
I don't think the actors are appearing in the next four episodes, so I suppose the idea is that Jimmy will be recovering that whole time.
Lisa, who keeps falling in and out of love with Smallville but is definitely in love right now.