Should I end our friendship ?

Sorry for the repost but I really need a second opinion

I'm starting to feel like our friendship is ending and I'm wondering if I we ever had a true friendship at all. It just seems like whatever friendship we had was just because they had no one else to turn too, I've had their back for nearly 3 years I stood by them through their toughest times, and whenever I need them they're not there for me. It seems like they only care about a few people in their life and I'm not one of them, I'm just that guy who's good for comfort and conversation, other than that I might as well be a stranger. I've been on the wrong side of a friendship like this before and I'd rather avoid it this time (honestly I'm still a little f*cked from that one)