Athazagoraphobia.

I know that this may sound stupid, but when you find a soul that matches yours, all the feelings are overwhelming. You're surrounded by thousands of feelings you may have lacked before, and you have so much to say that you don't know exactly where to start from. So you overly attach, and have the impression that you know that person for a lifetime, and everything's perfect, and your heart rate goes crazy...it's just like falling in love for the first time. But in a different way. It's weird you know, I can't even explain it, but whoever's been through this knows exactly what I'm talkin' 'bout. The rush, the feelings, premature happiness, sweet dizziness, euphoria, and everything similar to it...It's like, you finally feel alive.
The sad part is, the more you get attached, the fear of losing them rises. And you get crazy and paranoid whenever you think something's wrong, practically making them wanna leave you.
So, my friend, if you fear losing the one you love, start by not letting them forget that you don't want to lose them. 'Cause shouts and paranoia never tackled any problem. Athazagoraphobia, my friend. Fucking athazagoraphobia.