... when he's best friends with all your best friends.
... when he talks about the dudes in the gym more often than he talks about the people at work.
... when he knows the names of all the different shades and colours when choosing the tiles for your bathroom.
... when he knows when your period is.
... when he remembers to restock the refills for the air freshener than to top up the beer for the fridge.
... when he takes more than fifteen minutes to choose what colour top goes with his pants.
... when he'd rather have a conversation about your day in bed, than to have sex with you in ... the garage.
... when he's on okay terms with his mother-in-law.
(NOTE: This was all for the sake of humour. If your husband really does all these, it doesn't exactly mean he's gay. It could mean that you're married to a very sweet, adaptable, empathetic and loving man.
...
... or that he's actually gay. XD)