Do you ever get over your first love?

TLDR: 4yrs later, still haunted by thoughts of my first love, wondering if I will ever feel that "spark" for anyone again, wanting to move on.

I was truly infatuated by my first boyfriend for the year and a half that the relationship lasted. It was really a chemical high kind of feeling, lots of lust I guess. It's been four years since the breakup, with no contact between us, and I've grown up a lot, dated others, and I really love the guy I've been with for two years. We have much more in common than the first guy and I did and he's a much better boyfriend in every way.

But, I have never again felt that electric, passionate, can't-stop-thinking-about-you infatuation I felt with my first love. I guess maybe it's just a puppy love thing - you get it once, then it's gone forever. But I really miss that feeling (not the ex himself, but the way I felt with him). It haunts me. He shows up in my dreams a lot. I feel like I just need to let go of this and move on. I feel a "steady glow" kind of love with my current boyfriend, but I miss that "wildfire" feeling from my first love.

Have others struggled with this? How can I move on?