Agreed. If the OP is young enough for it to be acceptable, he/she should wait until the student is well past graduated and then see how it goes. As for the OP, I'm sorry. That's tough. I see a lot of people commenting hate, but obviously the OP knows it's wrong. Otherwise, he/she wouldn't be on FML about it.

He hasn't done anything we don't control our thoughts all the time and they are our faults all of you saying gross who cares its just thoughts he's not going to act on it obviously and they are probably pretty close in age seeing how much they match don't press TDI just because your a over thinking assuming brat

just for future reference what does it state?

There are a few issues with it. One: The brain doesn't finish development in regards to risk assessment and other fields until age 23- meaning that anyone under that age is at a disadvantage when compared to someone over that age. Two: Societal rules means that anyone who is younger than their partner has a power indifference- larger age gap means a larger power indifference, and if the younger partner is female, that further adds to the power imbalance. Three: OP is a teacher, and thus in a position that he could ruin the students academic career if she turned him down- it's known to happen. Four: If OP is attracted to his teenage student, he could indeed be a pedophile or ephebophile, and stop being attracted to her once she ages out of his "target"- which means that he would have taken romantic and sexual advantage of her and then abandoned her, if he did choose to date her. Five: As the older person, and as someone in a position of authority over someone who is not fully developed and thus should not be relied upon to make the correct risk-assessment decisions for themself, OP is in the position where the morally and ethically obligated decision would be to not act in that attraction and to in fact seek help in not acting upon that attraction, even if it means quitting, as acting upon it would make him a sexual predator.