Any man obsessing about a woman is foolish with serious mental health issues. No woman deserves to be obsessed about. A woman used to be property, something us men when we were cavemen fought about to fuck in front of others to demonstrate alpha behaviour and waged wars for.
Unfortunately, there are men that kill themselves over women. Get your fucking shit together, if a woman doesn't want you, tell her straight to her face, "you'll always be a cum dumpster low life, you have nothing, you are nothing" do some dead lifts to increase your testosterone, and act like a real man, not some forrest gump mother fucker.