(As I read through the comics. Currently vol 1, #171.)

As of right now, where I am, he's had three primary love interests. There were girls he flirted with here and there in the early issues, but for the purposes of simplicity, I'm only including characters he's with for an extended period of time, and / or ones that hold some sort of significance to the overall plot or characterization.

• Crystal - so far the best. I didn't actually enjoy them being together, but their relationship was relatively healthy until she effectively cheated on him with Quicksilver, who she later married. Not sure if that's going to be retconned later or not.
• Medusa - was thankfully only a major crush until he met Crystal. It was very "no" for me.
• Dorrie Evans - apparently his high school sweetheart, but I can't even remember her so she must not have been that compelliing.
• Frankie - Especially as of issue 171, she is horrible and sucks lmfao