Things are a mess.
Clark still wants Lana, and Lois still believes he's sleeping with her.
I do feel for Clark, though. I can't imagine what it would feel like to be married to a friend and have to hold the one you love at arm's length.
The kiss could be a problem, though. There's a debate whether cheating in a marriage is kissing or sleeping with other people. Of course, Lois assumes there sleeeping together, anyway, so maybe it doesn't matter for this story.
I really do think Lois is jealous, though. Part of it is that she wants someone to love her. But she also hinted she might like to sleep with Clark if he was willing to. And besides that, what does Lois honestly have against Lana? Certainly she seems annoyed with her prissy additude (the lip gloss, the lacy curtains in the dorm room, etc.), and I can see Lois being annoyed with someone prissy like that. But is that a real to call her Cruella? She has feelings for Clark that she isn't willing to deal with.
But Clark is still in love with Lana. It's certainly sweet how protective of Lois he is, but he still can't just turn off his feelings for Lana like a light switch!
I hope Lana finds someone else to love, though. She doesn't deserve the raw end of this deal, even if she wouldn't have excepted Clark's powers/origins. Maybe she can get together with Joe? He deserves happiness, too.