Is it normal if my family isn't taking my love for this guy seriously?

I have always been known as the stronger person in the family along with heartless, not serious, careless, tough, etc. I finally met someone who brought out feelings in me and made me weak. I'm so in love with this person and I miss him so much. For the past year, he's been a big part in my life. Although we had our ups and downs, it was all worth it because he is the guy I have pictured in my head and not some douche I was just talking to. But because in the past I never took anyone that seriously with so much emotion, my family just doesn't believe how sad I am to be without him. I talk to them about him all the time but they're just like "oh you'll get over it" like saying I'm just the type to never have feelings. Yeah I was and didn't know someone could bring them out like this. The thing that sucks the most is I want closure but how can I get that if they won't take me seriously about how much this guy means so much to me? Do I have to make some sort of crazy move to prove to them I'm not joking around? Like move back to where we met because I want to be with him? Then maybe they will see how crazy I am over him.