<human>: Can you summarize the given text in a few sentences?

So, here's the deal - I dated this girl for about 14 months and everything was going fine but I couldn't help get the feeling that I wasn't ready for a relationship.  I ended up breaking up with her because I thought being with her was what was making me sad and that by being single I would be happy again.  We broke up about a month ago and at first I was really happy in part I think because I was telling myself that I should be.  Anyway, last night I realized that I am not happy... In fact I am way more depressed now that I was before and I think breaking up with her was a MASSIVE mistake...  I don't know if I'm lonely or if I genuinely miss her.  I have been spending time with this new girl for a few weeks now and it's just not the same.  I don't know if I should give her a call and ask for her to take me back or if I should just try to stick it out... when we broke up she said she would wait a while for me to change my mind but she wouldn't wait forever.  I said that maybe some time apart is what we needed and I don't know if I meant it or not.  Reddit, my question to you is have you ever broken up with someone and then gotten back together with them and had it work out?  I just don't want to break her heart again if I am wrong.  I'm really at the end of my rope here guys... She was the last person I was ever close to and now I've got no one to talk to so I've come here.  Please help me.
<bot>: I broke up with my girlfriend cause I thought it'd make me happy and now I think it was the wrong thing to do, what should I do now?