The Master Cleanse uses maple syrup which is food for yeast. So I would wait till you are Candida free before doing that. Why not try the P&B (Psyllium and Bentonite) Bowel Cleanse to help clear you out? You can do this alongside the diet. See Bowel Cleanse Forum .
Dont know about the boyfriend, my guess would be to use a condom till you are well, sorry to spoil the fun but Candida is not fun. He can get some cream from the chemist.