To go a tad further, if you have chronic reflux there is the obvious discomfort caused by the feeling of acid creeping into your esophagus. Overtime, the acid can also do damage to the cells of your esophagus causing a condition called Barrett’s Esophagus. This is not dangerous in and of itself but is considered a precancerous condition and requires monitoring.
To be fair, he was just showing her around and had every intention of marrying a different girl entirely. Didn’t get married to Ariel until he met her dad and murdered her dad’s competitor for the throne. Did a pretty good job overall.