I have not said that JF's actions were acceptable. I said in my first post that his behaviour was immoral. I've made it clear that I think it is quite right that teachers should be prevented from having relationships with their pupils.
What I have said is that because none of us know much about him, we cannot label him with any of the technical terms. He is a sex offender. He is, in my opinion, immoral and unethical. I would say he is probably manipulative, but then we can all be manipulative from time to time. It's being manipulative and immoral that's the problem.
What we cannot say is that he is a paedophile. Paedophilia is a psychiatric disorder in persons 16 years of age or older typically characterized by a primary or exclusive sexual interest toward prepubescent children (generally age 11 years or younger, though specific diagnosis criteria for the disorder extends the cut-off point for prepubescence to age 13) - en.wikipedia.org/wiki/Pedophilia
We have no evidence at all that he has sexual interest in pre-pubescent children, so we cannot describe him as such.
There is some evidence to suggest he may be an ephebophile. Ephebophilia strictly denotes the preference for mid-to-late adolescent sexual partners, not the mere presence of some level of sexual attraction. - en.wikipedia.org/wiki/Ephebophilia
However, we cannot say with certainty that he is an ephebophile because we don't know enough about him or his relationships. All I know is that he's been in a relationship with his wife, who is slightly older than him, and with his pupil, who is significantly younger than him. I would suggest that these two instances are not sufficient to show a preference - just "the mere presence of some level of sexual attraction." We can speculate that he possibly is, given that he must have been very strongly attracted to his pupil to have taken such obvious risks and crossed such ethical and moral boundaries, but we cannot say with any certainty that his is without further evidence. I could expand on this, but given that simple appeals to the proper definitions of words have had me labelled as making excuses for his behaviour, I do not feel inclined to.
We can say he is immoral, unethical, untrustworthy and a convicted sex offender. I've never said otherwise. We can even say he might be a ephebophile. But we can't be certain he is without more evidence.