When she fell down, he would help her up. There were twelve dents in the floor by the front door of Twelve Grimmauld Place from that troll's leg umbrella stand, and many more scratches.
He had considered moving it once, but then it occurred to him that every time Tonks fell over, he got to help her up. He got to hold her hand and smile and ask her if she was alright.
Twenty-one years later, when a certain Teddy Lupin visited the house that would shortly be his, the troll's leg umbrella stand hadn't moved – apart from when he knocked it over.
That was life.