boyfriend versus husband

Last night as i took out ky's tennis racket to wipe the mould off, i suddenly recalled that my ex-boyfriend actually took up tennis classes many years ago so he could play tennis with his then girlfriend.

So while i was airing the cleaned mouldy racket, i asked my husband if he'd like to join me for tennis this evening, he shook his head.. ahh.. i suppose that's the difference between a boyfriend and a husband?