Should I agree to one last coffee with an ex who says it would give her closure?

My ex asked to meet for coffee: "Just once, so it doesn't end with a phone call." We broke up three weeks ago after several conversations about wanting different futures. I made the final call because we kept leaving those conversations as if a decision had been postponed.

I still care about her. The call wasn't rushed, and I answered the questions she asked, but I can understand why it felt like an unsatisfying ending. Since then, we've exchanged a few messages about how she's doing. I have tried to be kind without suggesting we might get back together.

She says the coffee would be goodbye. I'm worried I'd find it hard to leave when she gets upset, then agree to another conversation. I also wonder whether refusing is simply avoiding something uncomfortable that I owe her.

How would you decide whether to meet? I want to take her request seriously, but I don't want kindness to turn into an ending neither of us can recognise.