obsessed?

why am i like this? everytime someone comments him i freak out.im trying so hard to control my jealousy.i think i have a problem.im not sure what to do with myself anymore.im either worried about something or depressed.im so confused?...could it be that im obsessed with him now? i wish someone could answer all of the questions that i have.i trust him though i
really do.i just don't know how to feel.i just want him to be mine and all mine,forever.ive had people taken away many times before and i cant let him leave.could someone help me please? im clueless.teenage drama...sick of this shit.