I go through it every day. I try to stay busy so as not to think too much about being lonely. I hate sitting at home watching tv by myself, I hate going to bed by myself. I have a large stuffed teddy bear that I have dressed in my H's clothes and I sleep with it. I know that probably sounds strange, but it helps me.
It gets easier. The lonliness doesn't go away, but you tend to learn to live with it. I have my meltdowns where nothing anyone says or does helps. I cry over toilet paper commercials. The only thing we can do is cry and let it out. I always feel better after a good cry.