Bedlam by Susanna Strom

Fate brought them together, but happiness has a price.
The pandemic has ravaged the world and taken everything from Sunny McAllister. But when she literally collides with her older brother’s best friend—the guy she’s lusted after for years—hope and desire spark anew.
Rich, handsome, happy-go-lucky Kyle Chamberlain used to lead a charmed existence. Since society collapsed, he’s had to fight for everything—food, survival, and the safety of others. Now that he’s found Sunny, his focus is on protecting her, which means getting her to the secluded ranch where he’s made a safe home with his friends. Only Sunny’s not the starry-eyed innocent he remembers. The heat between them burns as bright as it has in her fantasies, but as much as she wants a life with Kyle, she’s determined not to abandon their hometown and its survivors.
When a powerful old acquaintance rides into town with his private army, he promises Sunny and Kyle the keys to the kingdom if they join forces with him. But deals that sound too good to be true usually are.
Can Sunny and Kyle have it all? Or will they lose what’s most important—each other?