He makes me feel complete

Sunny
I feel incomplete when ever I'm away from my so. Is that normal? I've never felt that way about anyone!!!! He's my everything. I feel like it's a bad thing. I feel I might be too attached. I usually don't get this attached to anyone. Like being near him I feel peace and like nothing can hurt me......is it bad that I need him as a source to feel complete? I'm a happy person. I don't depend on anyone to be my happiness. He just adds on to my happiness. He completes me to the point of euphoria. 
We've been together for a year and a half!