I would be flattered to be asked too, and you shouldn't even hesitate.
I think that modern social dancing has become fairly anti-social! It is understandable that a couple may choose or prefer to dance with each other for most of an evening - particularly if they are practising, but I think that dancing with just one partner, exclusively, is NOT good for anyone, and we should all make a point of dancing with several people, each time we go out.
I am not, of course, refering to competitive dance sport, which is something very different - but only a few compete, but many dance.