Mine by Georgia Beers

Three years after losing her partner, Courtney McAllister is finally trying to move forward, though her heart remains locked behind grief and guilt. Dating has been halfhearted at best, until she meets Rachel Hart, an aggressive real estate broker whose cool facade infuriates Courtney as much as it draws her in. Despite the spark between them, Courtney believes she has no room left for real love, and Rachel refuses to fall for someone who still belongs to the past. Their connection forces both women to confront what they fear most and decide whether a second chance at love is worth the risk.