I know a story about a boy who was dating a girl in Brooklyn and had gone to lakewood for a shabos and was set up with another girl for motzei shabbos. He didn’t like her. he had another date with the original girl on sunday but woke up with a fever. unbeknownst to him, both girls were friends and the 2nd had said something about a date with him so when he called the 1st girl to cancel (b/c of fever) she responded like she didn’t believe him. when he realized, he drove down to her house, asked to speak to her, popped a thermomater in his mouth, and showed her that he was sick and drove back to Lakewood. they ended up getting married.