Romantic or maybe romanticized. Tragic in that sense, this level of need and devotion directed at someone who is obviously not there, the real void not being that other person’s absence but something within.

Might be an easier broken up a bit, but it’s pretty short so maybe not. “…a loose cannon that cannot be controlled,” seemed redundant.

THX pointed out that it could be broken up. I’ll point out that it… it’s sort of cliche. In an emo garage band sort of way. All of what you wrote has been written elsewhere by teenagers for decades, now.

Apologies if that comes off as harsh. You could make a good piece of this with a little more time and a thesaurus.