There's no one answer to this question since it can depend on individual school district policies and personal preferences of teachers. In general, though, it is generally frowned upon for teachers to date or hook up with each other. This is because there is a power dynamic at play between teachers and students, and any kind of romantic relationship could be perceived as inappropriate. Additionally, schools usually have rules against employees dating students, so teachers would need to be sure that they're not crossing any lines if they want to pursue a romantic relationship with someone they work with.