Is it normal that i've never stopped liking my crush for 4 years?

Okay. So 4 years ago my cousin showed me this guy that was her friend on youtube when he sang and played guitarr. I mean i thought he looked really good to with his like long golden curly hair and a big smile. I kind of like. WOW. I said it to my cousin and some time later he texted me. But i was really young and crazy so i got pretty annoying on him. I wrote Hi like 50 times a day waiting for an answer. Time passed, i stopped. And sometimed he actually wrote to me. We met with friends a few times to. But then it stopped one summer. Like it never happend again. I got togheter with a guy that loved me in 4 years to. But even thoe. I still had this big crush left. Like when i see him or if he texts me. My heart bumps so hard and fast its crazy, all the times? So i broke up with my boyfriend. I tried with so many other guys. But it's still one guy i've thought of in 4 years. What the hell am i gonna do? Bc i've only been in love with this guy. I wasn't even in love with my boyfriend before. Will i ever get over this guy and fall in love again? Bc i dont want to feel what i cant have.