Love Among the Ruins
Catherine Maiorisi

Now the two find themselves on what should have been two separate romantic Italy tours. Each alone instead of part of a couple.
When Callie wants to leave the tour, Dana convinces her to stay. As days turn into weeks, their friendship and feelings grow. But guilt rages in Callie and Dana doesn't trust love.
The two must overcome their separate pasts in order to find their future together.