Is it just a crush or am I obsessed?

Hi, I work with this guy and I’ve been crushing on him for over a year now. Whenever I’m in work I need to find out whether he is there and I will wander around the building until I see him. I like watching him as he’s doing his job and I will try and find any excuse I can to talk to him. We do chat using social media occasionally and he has said previously that nothing will happen and I accepted it. We are friends and we get on well but It’s like I’m obsessed with him, I can let this compulsions go and move on. I feel like a crazy person and I want to just be able to find the part of my brain where he lives and destroy it. I’m struggling to cope with the amount of time I spend obsessing over him.

Sounds obsessive to me

I’m massively aware of my capacity to cross the line here, and it’s like I enjoy playing with the line. I honestly don’t know what the big attraction is, I just want him. I’m not even sure if I want a relationship with anyone. I’m finding it so hard to remove him from my mind, I have major obsessive tendencies anyway but this is exhausting me and could get me in a massive amount of trouble