Older men and the sex drive

I will tell you, I have had less and less of a desire for sex.  Sex or even masturbation.  I don't know why of course.  Some of it may be that I'm real busy, some of it may be because I'm slightly over weight and my hormones are off, or it just could be that I'm getting older.

When I'm alone in a hotel room, I sure do get horny, but I think that is because I associate a hotel room with jacking off, porn, or sexual escapades.  But when at home, I used to "need" to get off at least two or three times a week.  It have been once a week, or every other lately.  When I do have sex with my wife it has been weird as well.  I worry that I can keep it up.  It is not that is the only place it happens.  Even when I'm helping my self it goes soft.  

I know she thinks it is the gay thing, but I think it is something else.  I probably will talk to the doctor about it when I go in for my check up.  I have used the little blue pill before recreationally.  I say that because it was when I was going to a group thing, or when I had a romp that may last more than my penis was able to.  I use a cock ring when I masturbate, and that helps, so I am thinking about introducing that to the bedroom.  But anything out of the ordinary brings up questions.  Where did you get it, how did you know about, when do you use it other that here? 

The other thing that not getting it up or keeping it up brings, is that my wife thinks it is a gay thing, or that I am not interested in her.  I know, I know......   we need to talk about it.  Shit, we are lucky to talk about the other important things that happen through out the day.

Peace.