This always bothered me after I read the New 52, Clark and Lois definitely liked each other despite avoiding romance, at least Clark that's 100% sure. DC's page on Clois even hints that they might have had romantic feelings in New 52. Even one of the writer hinted about this might be true while talking over Superman #50.
It's like they were either trying to build up a full-blown romance but couldn't due to the shutdown, or the new "status quo" of Wonder Woman and Superman. This Lois sometimes gets in trouble, especially for Supes' sake, but she isn't completely helpless and can fight a little. Regardless even here it makes up for good tension, drama and protecting the ones you love at lost.
Clark gets jealous multiple times of Jonathan Caroll when he learns about him and when he learns she is moving in with her. Clark is the only one she seeks comfort in Superman #27, and that's not because she knows he is Superman. It is clear WW and LL have a jealousy angle at this point despite some people denying it, not clutching straws bot their respectful banter, facial and body expressions does clearly give it off. Perry in Superman #32 knows that he was interested in Lois seeing as to how he says he could have asked her out multiple times, but he acted like a loner.
In Superman #43 she gets very concerned when he gets knocked out, sleeping next to him while taking care of him and fixing him a meal, something Jimmy remarks she doesn't do for anyone. Even after this, she says she cares about Clark whom she almost loved, though it's clear it's more than just that. Of course they can't be together because writers already have them involved with others. But I for one would think it would be good if Clark gets to confront his feelings.
Lois feels bad for what his father did to him many years earlier. She also risks earning Clark's wrath by revealing his identity for his own better and wants to face the world together. She even goes as far to risk being killed to free him from Hordr. If that isn't a testament to love, then I don't know what is. Regardless, this one thing was written better than any romance in New 52.
Diana however has the most cheesiest statement about Superman impressing him to save his best friend, showing how badly the romance is written. What else will anyone do? Leave her to die? He dumps her like an unexpected jerk, even for someone losing powers, in Superman/Wonder Woman #22. Only 6 issues later do they reaffirm their love when he's about to die as part of Rebirth.
Coming back though, in Psi Wars she even fights for Superman and the latter is heartbroken that she went into a coma. This relationship could be explored much better, sadly we will never get that.