My Tired Love (Stein x Insomniac reader)

You've had insomnia for quite some time now. You moved in with the Professor Stein a little while ago.Spending a lot of nights up and watching the rain fall around the Patchwork Lab. normally you would watch the rain without interruptions but today, Your Professor thought today would be the time to try and get you to sleep. After failing you stay up and watch the rain only to go to school the next day to find that your Professor is acting strangely. Stranger than normal that is. After deciding to find out what it is after you get home from your walk later that day. Then after a few months from that you get the worst news that could ever be thrusted upon you and you can't do anything about it.