I've been writing the "parent support" forum on laura's. I am pretty sure this is a normal stage. It seems like some parents don't go thru it, but many do. It is like the stages of grief and he is in total denial. Or perhaps he is bargaining, I am not any kind of expert, but this seems familiar. The bargaining would be "if [he] could just be a lesbian..." I don't know as some parents don't seem to get any further, but some do.
Sorry about all this man.
--Jay J