<human>: (I meant "not sure if I *should* cut things off". Oops.)

Incredibly long story short, this guy (let's call him John) and I have known each other for about three years now. 

John's pretty much the ideal person I'd want to date. We always end up being extremely flirtatious and usually cuddly even, but as soon as he brings up the possibility of a relationship, I freak the flip out and run away.

This website describes philophobia (fear of falling in love) and says that "the symptoms can range from nervousness or restlessness in the presence of the opposite sex, to feelings of absolute dread at the prospect of meeting someone. In its most extreme cases, philophobia can cause full-blown panic attacks: sweating, irregular heartbeat, shortness of breath, nausea and an intense need to escape from the presence of the potential lover." It feels exactly like that. I absolutely panic. 

I'm tired of hurting this guy, and I'm worried about my intense fear. If I can't figure out how to be in a relationship with someone like him, I don't know how I'm going to figure out being in a relationship with anyone at all. :( Halp.

Can you succinctly summarize the text in 1-3 sentences?
<bot>: Incredibly scared of a relationship with someone who I really like. Should I go for it despite being afraid or cut things off to stop hurting him?