<human>: Can you condense the text into three sentences or less?

I have met someone online in World of Warcraft (Yes I could have posted in that /r/), we have been speaking and getting to know each other for 2 years. 

Recently it became clear that we both like each other and she has asked me to visit her in Sweden for a week which I graciously accepted for the chance to get to know them even better.

I asked her to ask her parents how much they would like for living costs while they put me up for a week, she got back to me today and said her mother doesn't want anything for putting me up for a week.

I want to get her something as a thank you for letting me stay for a week and have no idea what to get her, even when I asked my friend what she thought she would like she had no clue either.

I don't want to turn up spend the week there and leave without showing sort sort of thank you. Please help.
<bot>: Question to reddit, what do you get someone as a thank you, in situations like these, where they don't want money and you have no idea of their interests or likes?