I don't think Verity and Oliver have made an official announcement yet, but it's safe to say that it's leaked into the tabloids about their wedding. And they're not the greatest at being secretive (as we've all seen) XD So something was bound to spill anyway.
Verity has moved into Oliver's place, but they're staying in different parts of the house until after the wedding. Uh... yes. That's all. XD