Tinder is best known as a hookup app. If you're primarily looking for a serious relationship, it's probably best to use a different app/site.
She specifically said she's on there because she's bored, so I would just take that as she is looking for something casual.
Problem is other sites are not at all as common in my country. Tinder is by far the go-to app for dating, be it serious or hookups.
That said, there is no way to find out what she wants, right? You don't ask that question "what do you want from this?", that's just not reasonable. Honestly I want to keep seeing her no matter the answer, and we'll just see where it goes from there.