Actually in my opinion, way back in the White Night days I think there was romantic chemistry between Harry and Lara. Of course a lot of that could be chalked up to merely White Court Vamp Whammy, but then again, Lara is attracted to strong men. I also agree that is unfair to Molly and her and Harry could have gotten something going eventually. The problem with Jim going there is Harry knew Molly since she was a young child, and even though she is a grown up young woman now, for a number of fans it is an ick factor. I never was a fan of the Murphy romance, I liked it better when they were friends and working partners. I liked Murphy much better when she was a tough professional cop, in my opinion her evolution as a character didn't go well and for me it was a relief when she exited the stage. Susan also went off the rails because of the way she was written originally. Luccio might have worked, but it was all about Peabody's ink? Perhaps Jim just has trouble writing romance? If he does, he should leave Harry alone, let him be a father to his kids and eventually a happy grandfather.
I agree, I recall several instances over the years where Harry reacts to Laura and states that it doesn't have anything to do with his mantle or her whammy, but a significant attraction to Laura herself. I liked Harry and Karen, but over the long haul it wasn't going to work without major upgrades to Murphy's character. I think that Jim has been leading us towards this for a while, which means he intends to torture Harry (us) horribly with it not working out... Can you imagine the explosion when the Blackstaff finds out his Grandson is going to marry a Whamp? He's already said that he'll take matters into his own hands regardless of what Harry wants. I think that will be a significant event in Twelve Months.