Listened to this via Kindle Unlimited and really enjoyed, would recommend, it’s a very recent release actually, came out in September.
A romance mystery novel set in a Canadian university, where a student has gone missing, and five months after his disappearance a girl moves into his old dorm room and some kind of glitch happens enabling her to instant message with the version of him from five months ago. Together they try to help prevent what happened to him in her timeline from happening in his timeline. 
It’s a really cool concept and I enjoyed all the little time loop elements. It was compelling, and cute too, it made me laugh, and I appreciated the lil bit of magic (lol at Jack), and that the FMC is a bit odd!