Separated and don't know what to do

Hi, I've been married for 4 years. 1 year ago I started to feel like all the feelings I've for him go away by many things and every month was getting worse. So 3 weeks ago I left my home and start living alone. The first week he calls me mostly every day to know "how am I" and he write me several letters saying that he want me back and will do every thing to be with me. But he never showed up on my "new home"... after the letters he stop calling me and sending me emails.

I feel really bad now because I think he's not desperate and worst I don't know why I feel so bad, If I don't feel anything why I'm hopping he came to me and say please please come back???

I've an email to him that say's that I feel so sad that my "value" was just 6 letters with promises but nothing else... I don't know what to do

Separation and divorce are the most painful thing I ever went through. He showed you attention when you left. Didn't he show you any affection when together? Why do you want him to feel desperate for you? Do you just want to be wanted? If the marriage was no good, getting him back will be no different. You have to start accepting its over and start the grieving process. Its hard and lonely but it is what we go through when a marriage ends. Get some healthy support.

Thank you so much for your answer ,
I hope to feel better in the next days, I know that I've to accept this new (kind of lonely) life, because I think it's the best.

I think the worse of it is how easy I was to forget. That is horrible pain.