You are looking so smart!! I'm surprised you hadn't bought your suit earlier, it is you're wedding after all!

there’s a tradition where the groom buys the wedding dress and the bride buys the suit for the groom.

We don't have that custom, neither in England nor in Hong Kong. Many regions in Hong Kong/ China have their own odd wedding customs. Like when my two friends got married, both parents said the other family should buy a suitcase for the bride. In the end, both ended up buying one and the bride got two new suitcases