We're going to have problems trying to fit together. I come with a large family, 5 children living in Thailand; four with me. 3 mothers living Thailand; all on friendly (but no longer romantic) terms.
And you come with a large family, too. A sister and a niece. If you want to, let's meet. You can hop a bus, come in one morning and spend the day talking. I'll bring a Thai employee who can translate for us. I can put you up in a nearby hotel if we go late; or you can return that evening -- up to you.
If you want to bring your sister and her daughter, lao tae khun.