Never Let Go - Allison B. Hanson

Just one gorgeous weekend away from reality. Then they can go on like it never happened…Riley Fisher doesn't have time to chase after men. As a single mother working two jobs, she barely has time to eat or sleep. But a girl has needs. So when handsome veteran Sam Brooks asks her out, she decides she deserves some R&R. She doesn't expect anything else from him—after all, he's hardly the type to get serious.

Sam came back from Afghanistan lucky to be alive, despite PTSD that hits whenever he lets down his guard. His therapist told him to forget about relationships. When he meets Riley, he's not planning on breaking the rules. She's cute, petite, and a total smartass—not even his type. But she's hard to forget. Especially once he runs into Riley and her toddler on a rustic mountain getaway and sees what he's missing. Her kid makes him laugh all day. And Riley makes him burn all night.
Too bad a relationship is impossible. But they can enjoy the attraction. It's not like they're going to fall in love…

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Riley's life seems to be one disaster after another.  The one good thing is her son, Luca.  She wants one night out while he's with his father to have mom fun. ;) Sam asks for Riley's help with his niece's graduation present.  When he picks it up he can't seem to keep himself from asking her out.  Even though they believe they aren't good for each other Riley and Sam can't seem to stay away from one another.
I loved Sam.  He's a good man even if he doesn't believe in himself, due to a lackluster therapist he had previously.  He loves Luca and is instinctively good with Luca, even though he never believed he should get involved with a woman, much less one with a child.  Riley my heart went out to her and she couldn't seem to get a break.  She barreled through and was a strong determined mom with a smart ass streak.  I love a bit of snark!  If you are looking for a heart wrenching story that will leave you with a happy heart in the end then I highly recommend Never Let Go.