18 parts Complete Luna Stone had the relationship of her dreams as a teenager, but the book takes off six months into her marriage where things go a little wrong, leaving her with depression, among other things, and when her life is dark and miserable, she finds that maybe, just maybe, there is a light at the end of the tunnel.
Lieutenant Chase Colton had a rough life as a teenager/young adult after a very defining moment in his life, which led to him seeing life from a different perspective after months of therapy and struggling through PTSD, but it made him the police officer he is. A man who trains police dogs who helps with normal K9 work but also PTSD sufferers, when he has the chance.
(This is more of a 'life after marriage' type of book, and not a teenage romance, so if you have been wondering what happens, after the high-school/college drama and 'they got engaged, got married and lived happy ever after' this is the type of book you would be interested in)