Mutual understanding vs situationship

One message tells you very little. Look at what has happened over the last three or four weeks. Does she start conversations about as often as you do? Does she make specific plans, or does she only send open-ended questions? When you suggest a time, does she say yes, or does she say maybe and go quiet? A mutual understanding tends to have a rhythm that both people help create. A situationship tends to have one person doing most of the work while the other responds when it's convenient.

Also notice how she talks about the future. Does she mention things further out than next weekend? Does she bring you up around friends or family, even casually? People who are clear about what they want usually leave small traces of it. People who are unsure, or who want to keep their options open, tend to avoid anything that sounds like a plan.

Most people in this spot wait for a signal instead of asking a question. You can ask without making it heavy. Something like wanting to know where the two of you are, or whether she is seeing other people, says what you want to know in plain words. It's fair to ask once you have spent enough time together to have an opinion. Asking after two dates tends to read as pressure. Asking after four months with no clear answer tends to read as avoidance.

Be ready for either answer. If she says she is happy keeping it casual, you learn that she is not looking for more right now, and you can decide whether that works for you. If she says she wants something more defined, you learn that the vagueness wasn't what she wanted either. Both answers are useful. The worst outcome is getting neither answer and staying in the middle indefinitely.

Serious conversations about where things stand go badly when they happen late at night or in the middle of a text thread about something else. If you are feeling uncertain, wait until you are both in a normal headspace, ideally in person or on a call if you aren't together. Text can be used to suggest the conversation, not to carry all of it. A short message saying you'd like to talk about where things are going, and asking when she is free, gives her room to prepare and keeps it from feeling like an ambush. Don't send a long message laying out your feelings at midnight. It is too easy to misread, and too hard to take back.