Question about letter for my host mom

Tomorrow is my last day with my host family in Japan who I've been living with for almost 4 months during a college study abroad program. We speak casually with each other. I am writing a thank you card for my host mom. Would it be appropriate to end it with "また会いたい!" or does that sound weird? How else can I express that I want to see her again someday?

by boxorags