...and if it had been longer.
This is a short and sweet enough barely-Cougar tale, which ends in a HEA. There wasn't really any hot sex, just some sweet sex, and a couple that clearly had feelings for each other, but that had problems communicating. Which could have very nearly been the end of their relationship, if he hadn't been the more mature one.
I suppose the tale breaks stereotypes, as the younger male character has more maturity than the female, and come on, being dumped for a younger model may well be tough, but four years later you're not over it and you've only had one relationship? Hardly believable. If the author re-worked this, and added a bit of common sense and confidence in the female lead, and lengthened it a bit, it would have been a pretty good read.