Jackie,
He had so much respect for his Father that he reduced him to tears at Marks Tey Hotel, by pretending to be gay in front of Nevill's farmers union pals.
Perhaps Jeremy was gay, or bisexual, Vidvic, or going through a period where he thought he might be? It's been reported that Jeremy was subjected to a homosexual attack and abuse when he was a young lad at Gresham. If this is true, it could well have impacted on his sexuality.
If Jeremy was either Gay, bi or experimenting with the idea that he might be gay or bi, I doubt that Nevill or his fellow Essex farmers would have responded to that with much sensitivity, certainly initially, do you? I've read that Nevill referred to Jeremy as a 'Nancy boy', though I don't know if there is any truth in that.
What I'm suggesting is that if this alleged incident did occur, and that's a big 'if, the reason Nevill was upset may well have been quite the reverse of that alleged above. Jeremy may not have been pretending to be Gay at all, he may merely have been attempting to be himself.