Too annoying to finish. Another one of these I-can't-date-my-brother's-sister-or-he'll get-mad-at-me books. I don't get that plot logic at all. Aren't they all adults? Sam and Riley don't act like adults. Their "banter" is just immature teasing and I don't get why they spent 10 years pretending they weren't interested in each other while dating other people. Then Riley decides to test him and uses other men to make Sam jealous -- it's just juvenile and mean. So I stopped right there.