HELP PLSSS

hi guysss I need help finding a bl manga where there is this phone line thing that you call when you need someone to talk to like to make you feel better when you are sad and I think the same called this line when he was in school and the use picked up and talked to him whenever he was sad on the phone, but then one day he called and the uke wasn't on the other end of the phone and he got really sad but then later they were reunited.

if you can help tysmmmmm