I'm going to suspect the guys she had affairs with were not that innocent. I saw a selfie one such teacher took, with the boys in her car. They appeared to be from the school football team. I don't think these teachers go for the shy, nerdy, freshman types. They go for the school studs, the ones who ignored them back when THEY were in high school.
Perhaps, we do know they were students and she was their teacher.
She abused her position of trust and all the jokes and juvenile fantasies won’t change that.