I need help with love?

well see there was this girl i met back when i was like 15, we started hang in out and one thing lead to another and i ended up dating her.. well a year or so pes buy and we fall in love with each other, when i say we feel in love i mean we thought we would be tougher forever, but me being a dumb *** i broke up with her bec i was a kid and picked drugs over her and ever cents then i could never get her out of my mind, really man ive never loved a girl like her, she was one of a kind... well a couple months back we started talking agen and we were going to get back with each other i ended up going to j.v for a month so we never talked...come to find out when i get out one of my old homies got her pregnant.. dude when i herd that my hart died.. and now when i sit back and think i wished i would of picked her over drugs... i mean really just knowing im never going to have another chance with her ever just rips me apart, and come to find out that guy that got her pregnant beats on her, so there nottougherr and never will be agen becz he likes to beat girls... man im stuck, i feel like im never going to get over this ill never move on....its ben like 4 years and i still haven'tt, i think about her night and day, i dont konw what to do...help me man