First Time Friends (Skies of Avalon #2) by Jenna Avery:
 
Some people live in graves of grief, and no one understands this more than the Dragon shifter Fynn Gleanscale and the empathic Siphon, Orliana Veritas.

Five years after the Dragxi accident that killed his pregnant wife, Fynn remains frozen in time. Everyone says enough time has passed, but how does anyone move on when everything's burned to ash?

Orliana knows something about impossible choices. After the murder of her abusive husband, she must raise her son while carrying the weight of the past. Trusting men now feels like petting a hydra's tongue and hoping to keep all her fingers.

When their Fates collide, Fynn and Orliana discover moving forward isn't a straight path. Sometimes the only way forward is to let go of the past — even when it threatens to tear you apart.