A lot of people in long-term relationships lose desire for sex and start thinking there’s something wrong with them. But, in many cases, the problem isn’t that they lack desire per se–it’s that they’ve simply been having bad sex. They lost interest in sex because it just wasn’t worth having, which means that getting desire back isn’t about taking some pill or medication; rather, it’s about making sure that you’ve having sex that’s worth having. So let’s talk about how to make the shift from bad sex to good sex.