Why can't I like anyone romantically?

Idkmate
I haven't had a crush on anyone for about 6ish years now. And when I think of all the crushes I've had (the very very few of them) they where all in primary school and I only liked them because they were nice and shared an Oreo with me at recess.
And it's not like I don't want to have a relationship. Honestly the only thing I know I want in my future is to be married and have a family and all that jazz. But I just can't get myself to like anyone. And whenever a guy approaches me about liking me I shut down and am all nope, nope, nope. And I always feel terrible because I know I've turned down a really great guy (and some douches) but I feel nothing towards them and feel even worse if I don't turn them down, like I'm just dating them to waste time.
And I know I'm just a teenager but I look at all my friends and there either dating, have crushes, or pining after someone that they haven't even talked to. And I can't help but wish that was me. I wish I could just have the feeling of liking someone even if they don't like me back. I know that sound unhealthy and I'm kinda fearful that I'll end up in an unhealthy realationship because of this, but the feeling of falling in love with someone sounds nicer than not liking anyone and constantly turning down guys, ruining our friendships.
I feel as if I have an incapacity to feel romantic towards someone, and I hate it. I feel so lonely and I know I put it on myself but I don't know what to do. Can anyone relate or help me out know what's going on?
Why can't I like anyone romantically?
23 Opinion