Yes and yes. I'm not about to fool myself into thinking he wouldn't be a willing participant. But I also believe that for the teachers there is an element of power or control that they get off on also, not just the sex. And any relationship where that is an issue is unhealthy.
And I have some similar experience; I had a "thing" with a teacher. I wasn't forced into it, I was flattered that someone in his position had that kind of interest in me. It was exciting and thrilling, and it was something I believed I wanted. But as it progressed, it became dominated with issues of being discovered---people were noticing things, asking questions and that was a lot of pressure for me. The thrill became paranoia and it wasn't fun anymore. He was in a position of authority, and although he never used it against me, to my immature mind it was a very persuasive factor in keeping me some place I didn't want to be. I didn't have the maturity or skills to end it and it went on much longer than it should have and it was a really, really tough lesson to learn at that age.