I was texting with a girl back and forth for a while. Mostly about dumb shit. We usually text often and I like to give her a hard time, teasing, flirting, all that stuff and she gets into it. Tonight, she started talking about how lonely she is and how guys don't notice her or something like that (but not about any specific guys or anything). She's acted pretty into me before and we went to a concert together last night and she was real into that and we had a good time. However, this sounded like friendzone stuff. I just replied with "sux 4 u". She didn't say anything back. Was she giving me a shit test or was she trying to subtlety tell me something? This shit is fucking confusing. Did I handle it correctly? I'm new to this, so what do you all think?

EDIT: Turns out it wasn't really a big deal at all, she got over it, I set up another date for this week. Time to escalate! Worked out good I guess.