The context of the following conversation is Kai went back to my house to find their wallet, but it wasn't there.:
Kai says I went back to my house to find my wallet but it wasn't there..
The friend responds You must have left it somewhere..
Kai responds I hope not.  I don't want to lose my wallet..
The friend responds It doesn't mean it's lost.  I have people return my wallet to my home..
Kai responds If someone finds it, I hope it's returned. I don't want to have to cancel all my cards and get them replaced..
The friend responds That is a huge hassle..