To me, this use of words like 'overdose' and 'addiction' are used mataphorically to signify this obsession with this girl he has, that she is his drug, his addiction. It also seems like theyve each other for a while, watching her go through these guys, just waiting for his chance to prove his love, and that for one reason or another (she could be dying, i dont know), but his running out of time to prove to her. So, before her time runs out, his begging for her to give him a chance.
To me, this use of words like 'overdose' and 'addiction' are used mataphorically to signify this obsession with this girl he has, that she is his drug, his addiction. It also seems like theyve each other for a while, watching her go through these guys, just waiting for his chance to prove his love, and that for one reason or another (she could be dying, i dont know), but his running out of time to prove to her. So, before her time runs out, his begging for her to give him a chance.