I just re-watched haunted to refresh my memory, and I have to say I actually really like these two together. I love how Porter seems to be willing to do whatever he can to help Spectra and their friends when Revenent (Spelling?) has them all trapped in the Ghost World, and he even sacrifices himself for them in order for them to get out. I'm honestly glad Spectra warms up to him in the end, since it's clear he really likes her, even just by their general interactions throughout the film alone. 

Conclusion: Yes.