Letters to nobody

Dear Mr. Nobody

Hello I don't know how to introduce myself to you. You don't know me (I think so). I'm Lily Stevens. You lived next to my house for a month, four years ago. I might be crazy to write you this letter but I wanted to write to you from a very long time but never got the courage to.
The day you moved next to my house, I thought that, here you go another next door whose going to come, stay and move away in a month. But now I realise that I shouldn't have said that. You really moved away.
At 6:45am everyday when you used to drink your morning coffee and read a book, I used to peep through my window and look at you. The day when you looked up and saw me there I was really embarrassed. I still regret never introducing myself to you nor did you introduce yourself to me.
Then on a rainy day, I was standing at a bus stop waiting for the rain to stop, you came out of nowhere and gave me an umbrella. I wanted to thank you about that but I never got the chance to. That very day when I returned home,  someone called me and told me that I got a job in a travel agency. I told him that I never applied for a job but he told me that someone else filled up all my details in the form. I didn't knew who did it back then but now I think I know it .
After a week, you came to my house. When I asked you to come in you just said that " Stay well and don't peep at anyone like that from the window. " then you went away. I didn't understood what you said.
Next day I discovered your house's door locked and you never opened it again.
So, I wanted to say that I'm well and now I don't peep out of the window anymore as my new neighbours are an old couple.
Thanks for the job and the umbrella too.I still have your umbrella. It's my favourite colour, purple and as you helped me so much I assumed you to be my gurdian angel.

I don't know where to send this letter so I'm keeping it to myself.

Your ex-neighbour
Lily