I have such a hard time believing that it is Lois who is the problem and who prevents Lois and Clark from getting together in LnC.
I'd hesitate to call Lois a problem, but it's true that she is the reason they aren't together much more quickly. Clark is a good guy in LNC. Not perfect by any means, but his love for Lois is the driving factor in almost every decision he makes. Even the stupid ones.
It's so hard for me to accept that she is galactically stupid, or that she is more promiscuous than Superman, or that she is completely messed up and needs Clark to save her, or that she needs to figure out that she loves plain old Clark Kent more than Superman. Heck, she needs Clark to show that he trusts her so that she can love and trust the whole man, Clark and Superman!
In LNC, Lois isn't galactically stupid, but she is a bit blind (like coolgirl said). She isn't promiscuous, she just has (limited) experience that Clark doesn't. She's certainly not completely messed up, and the only thing she
needs Clark to save her from is death - repeatedly. But the rest of what you said is pretty close to true.
The thing is, though, when you're coming from the premise that Clark is a good man (as opposed to a proud, very-alien, love-em-and-leave-em
jerk), it's easy to understand that Clark could, over time, teach Lois about love and trust.
Lisa
P.S. In a nod to the original question, I will say that unless I'm constantly reminded of the fact that CK has red hair and freckles, I'm going to picture Dean Cain in the role regardless of what the character is supposed to look like.