Getting my boyfriend back? Am I doing the right thing?

I dont really know how to start, but here we go. I was with my boyfriend for 4 years since the age of 15. everything was ifne and perfect nothing was ever wrong and we got on great! all until i decided to go to university last september. I didnt realise anything was wrong until we had an argument on a thursday afternoon about how he only spends time with me on fridays and doesnt want to spend time with me anywhere else. so following this he finished with me. I left him for a couple of days to calm down and then tried talking to him again, we had broken up in the past and doing this always worked it out we just needed time. But this time was different he didnt want to talk to me and wouldnt explain why he didnt want us back together. After weeks of fighting I finally found out he was scared of me going to university because I would be 2 hours away and we wouldnt see each other much or id find someone else. I finally gave up trying to get him back and started hanging out with someone else. This must of sparked somthing in him and he started contacting me and wanting me back, but at this point i had had enough and was so angry i just cut him out and went to uni. until december i had him contacting me still trying and after sitting my exams in jan i was going to give hiim a chance, but only to find out on christmas day he had a new girlfriend? months followe of more arguing and him telling me i was to late but he does love me but he cant just finish with this new girl. I dont know why we had been together for 4 years am I that replaceable? He is now 7 months into his new relationship and im in uni and i dont think about him anymore. Until i came home after finishing my first year in june he contacted me. He asked to see me and just wanted to talk. I thought it might just to be friends and work things out seeing as we have the same friend group. It did start liek this and just nice being in his company, until he started talking to me about his new girlfriend. He said how she doesnt trust him and hows shes clingy, how she cheated on him in the first month. He said he calls her my name during sex and in general conversations, he says he thinks about me all the time and when he looks at her he sees me and misses me. at this point i was in tears and wanted him back so much, thinking this was it! but then he dropped the bombshell of saying in feb he and her had had an abortion! this was the tipping point! I was just about to leave when he said he was oging to talk to her about all this problems and tell me what would happen and ther might be a chance of us getting back together. lets say he never spoke to her and we argue about it all the time him giving me this false hope! I then told my friend what he had said and she told a friend of the new girlfriend! she decided not to tell the new girlfriend so she still doesnt know what he has been saying behind her back and been talking me. This is where i have my problem, I really want to tell her what he said hoping the break up and im able to try to get him back again. But if i tell her he might hate me! I was really hoping her friend would tell her but she hasnt and I dont know what to do! he wont reply to me and even went to the point in saying he made up the abortion to test me to see if id tell anyone! I dont believe him because i know when he lies and why would he say that after confessing everything? he isnt smart enough to think of that! I jsut need help to if I should tell her what he said or if anyone else should tell her? Ive been trying to think of someone to tell her but know one wants to get involved which i understand but i really need help!! sorry for the long information! but please help me this really is to painful to be without him now thanks!

You need to let him go. Obviously he let go way back when he choose that other girl at Christmas. If he really liked you, he would have kept fighting for you. I think he just keeps contacting you every now and then as a rebound cause he knows you will always go back to him. You need to forget about him and do your own thing.