I met my husband on OK Cupid.
We went out on one date. A few days later I got a brush-off email.
Three months later he emailed me and asked what he could do to get back in my good graces.
Turns out he was talking to another woman when I messaged him originally, and his mother convinced him to keep his options open and go out with me too. He felt guilty seeing two women at once and brushed me off. The other one fizzled a few weeks later...a few months later he decided he was done dating, but he felt guilty about not really giving me a chance and wanted to see if there was something there.
I decided that since we weren't exclusive on that first date
and he was polite about the whole thing, that it was worth giving him another chance. We chatted on the phone every night for 3 weeks before our schedules worked out that we could have a second first date. That really helped too - he had to be semi-serious or he wouldn't be spending so much time getting to know me.
13 months later we got married.