Signal Boost

Signal Boost (Off the Grid) - Alyssa Cole

John catches Mykhail in his family's garden. They take him in. After finding out he is going to a nearby University to seek his professor (who predicted this would happen). We find out what happened! In theory, this *could* happen real life. (Unlikely the whole world, which from what I understand, happened in this one).
The romance was sweet, Mykhail coming out (so to speak). I was heartbroken when reading what happened to Mykhail's grandma. I appreciated that the reader found out what happened and some resolution happened.
Looking for to Maggie's story. Hope it's not too angsty.