Some help please

Ok people this is kinda long but I would like to know what you all think..ok here is the deal…well I have a four year old son and me and his dad got together when I was like 17 and he was like 23 well we were together like 5 years on and off on and off it was like that the whole damn time..well anyway I thought I loved him but he drink to much and it was just a lot of bullshit and we had like 4 diff places together and it never worked…well we finally called it off like last summer …well then I met this other guy and we dated for awhile and I thought that he was the right one for me..then it was like I just got board with him…and we even got engaged!! Well I called that off and moved from snow hill all the way down here to pink hill..got a new job and started back to school..now I have met this other guy named chris and it all started out good but now like the past 2 days im just sick of him I dont even want to be around him now and he has did nothing wrong!…why cant I find the right guy? Why do I get so sick of them so fast..its like I pick out alll the things I diss like about them and dwell on it! I really hate myself for this..because I have really broke some peoples hearts that didnt need to be broke..but I cant help how I feel..I think there is something really wrong with me..I mean im 23 years old I should start trying to find the right one right? I am bi polor..could that have anything to do with it..maybe its just not in the stars for me to find someone…should I just give up trying?