Since BRIDES OF DRACULA was David Peels only staring role, I find it highly unlikely that there was any problem with his homosexuality. On the contrary, I believe he simply was NOT interested in doing films. He was a stage actor for the most part. For an actor to go immediately into real estate and antiques tells you where his real interests centered on.
I too recall seeing BRIDES OF DRACULA when it originally opened in 1960, and I am quite certain that I never had a clue that it might have had "queer" or "fagot" (terms of the day) suggested scenes. I simply thought it was a fantastic Hammer horror.