Yes, during the Battle of Hogwarts, when Ron says they should help the house-elves so they don't have to die, like Dobby.
2nd Answer: No, Hermione kissed Ron;
'"No," said Ron seriously, "I mean we should tell them to get out. We don't want any more Dobbys, do we? We can't order them to die for us -" There was a clatter as the Basilisk fangs cascaded out of Hermione's arms. Running at Ron, she flung them around his neck and kissed him full on the mouth.'