What it means when she says i guess

She's not excited. That matters. When someone truly wants to see you, the text comes back faster and warmer. 'I guess' usually means she's interested in you but not in the specific plan. Or she feels social pressure to agree even though she doesn't want to. Or she's on the fence and needs a reason to lean in.

This is not ambiguity you should solve by pushing harder. Pushing turns lukewarm into cold. What you need to read is whether the low energy is about logistics, timing, or about you.

Your reply needs to make it safe for her to admit she doesn't actually want to do this. If you respond as though she just said yes, you're forcing her to either lie or backtrack. Instead, acknowledge the 'guess' directly without being weird about it. Something like 'Only if you actually want to though' or 'We can also do something else if coffee doesn't sound good' gives her permission to be honest.

Second, pull your energy down one notch. Don't disappear, but don't oversell it. This signals that you're okay if it doesn't happen, which is attractive. People feel more interest toward people who aren't desperately trying to make something work.

Do not suggest a specific time and place right now. That locks her in and makes the whole thing feel like an obligation. Send your reply that gives her the out, then wait. If she comes back with actual interest, that's when you coordinate the specifics.

If she doesn't reply or gives you another lukewarm response, you have your answer. Stop texting. She has to show you she wants this, not the other way around. If interest doesn't come back in her next message, let it go for a few days and only reach out again if you have a new reason to contact her.