Love or Just Needed

Am I love or just needed? this question always lingers in my mind whenever I'm left alone. Even though I've spent a whole day full of laughter with him, when the night comes, everytime before going to bed this feeling of wanting to be assured visits me.
Is this feeling natural because I want him all for myself or is it what others call a womans ins....

He was my first love, my first kiss, my first guy to hold hands with, the man who made my gray colored love into multicolored. It was in our high school that I first met him. It was not love at first sight. Infact it was him he first confessed his feelings for me. Only after that did I got interested in him, after knowing him, I started to worry about him, then after few months, I started noticing he is already all I think about and all I want to think about...it was then I realized that I am now in love with him.

But me realizing was too late.