I want to let go but I cant
Ok, I'm 20 years old and I can't seem to let go of my ex (34 years old), we met online and for about 2 months spoke like 24/7 and when we met, she stayed with me for 3 weeks. It started of great, we were both madly in love with each other, and everything was fine. I was so serious about her, I proposed and she said yes. But after the first week and a half of her staying with me, we started arguing a lot, mostly about her spending a lot of time speaking to guys she met on online games. And things fell apart from there, we started having petty arguments, and things just weren't going well so we decided to spilt...
After a week of leaving me she was telling me how she had fallen in love with one of the guys she was speaking to online, andf that she wasn't 'In love' with me anymore. I was totally heart broken.
And now its been about a months, we still speak occasionally online, but it always ends up in arguments. The thing is deep down, from the start I knew this woman wasn't going to be the one, but for some reason she got inside me, and now even after a month I still can't let her go. I still think about her all the time, and e-mail her and stuff, and we do speak, but she's always telling me to leave her alone, but then sometimes she's like doesn't. And I want to, I really do, I just can't bring myself to cut her out. >.<
Can someone please help me make some sense of this, why can't I let this woman go, why can't I just move on like all other normal people do?