What do I do with all these flowers I am finding? where do I go to make the bouquets?

Bouquets are done - they were lead up to the wedding and the wedding has now happened. They say they'll have the bouquets back at some point. You can store the flowers to use if and when they come back. You can give flowers by going to people's profile pages and get Vesnali coins in return. Or you can try selling them.