The Trainer's Conundrum

Met a client at the gym last month who seemed interested in more than just fitness advice. We started meeting outside for coffee, casual dates really. She’s beautiful and we both have fun together, but she doesn’t seem to want anything serious yet despite hints of intimacy. Last week, after an intense workout session where she was particularly responsive, I kissed her, a moment of weakness from years of dating culture. No response beyond some hesitation and silence. How do you navigate this kind of situation without overstepping? Am I the asshole for assuming more from casual dates?