I would have given this book 5 stars, but I really couldn't stand the misogynistic and abusive behavior. SPOILERS AHEAD!!!
It really pisses me off when authors try to pass off abuse as love. I think the author tried to incorporate spanking and anal play as part of the romance, but did it in a completely wrong way. If two people enjoy that in their relationship, then okay, but don't incorporate it because "the husband has the right to abuse his wife if he thinks it necessary". Forced spankings (with and without objects) and forced sodomy is an appalling excuse for romance or love. I've got no problems with an author including "non-vanilla" sex in a romance, but don't turn it into something completely unhealthy.