<human>: So I've been seeing this girl that I met online for about 3 weeks. We talked for about a week online back and forth, sending pictures and whatnot before we hooked up. We both went into this looking for sex and nothing else. Thing is, we text each other every day (pretty much throughout the day), and she's always texting me good night and good morning. 

We are going to meet up again for another hookup and I casually suggested she could spend the night if she wanted to but she basically said "I don't feel comfortable spending the night unless I'm dating that person". I'm ok with keeping it a casual FWB thing but I kinda feel like she might be conflicted since we have long texting conversations every day. Am I just overthinking this? Should I just ask her what's up or continue to play it cool and go with the flow?

Can you summarize the given text in a few sentences?
<bot>: I've been seeing a girl for 3 weeks, would be ok with keeping it casual FWB but I'm not sure what she wants