Remember Love by Ginny Sterling

Ava Richardson is a new mother with a child she never expected. When a nightmare event rips her from a fairytale life, she’s devastated and frightened to move on. What she never expected was to find solace in a pen-pal, pouring out her feelings to a stranger halfway across the world.
Colin Wilkes is a weary, reckless soldier in Afghanistan. Saddled with guilt at causing his best friend to lose his leg, he awaits whatever fate he has coming. Unexpectedly receiving an email from a strange woman looking for anything to help her get through the day- he can’t help but feel intrigued and sympathetic to her pleas.
When Colin finds himself suddenly back in the States and face to face with his mysterious pen-pal, can a friendship that began over the internet solidify into something more? Can one shattered soul help mend another? Can they be saved by remembering just how to love someone?