Which is why it should all be avoided in the workplace. This is not a debate about the merits of gay or straight sexual orientation.
My coworkers have no need to know if I am in a relationship, have children, etc. If they ask I will (and do) tell them I am not interested in having that conversation and I will never ask them or engage further if they bring their partner/spouse/children up.
I'm there to do a job and leave as quickly as possible upon completing the days work. Everything else, in my opinion, is a distraction hampering that goal.