So she rejected him THREE times
Brian is one resilient guy! Kenya actually rejected him three times:
(1) She ended their blind date early.
(2) Immediately after their first date and spending the night together, she said it was a mistake and that it'll never work.
(3) When Brian visits her two weeks after their fight about race at the supermarket, she turns down his plea to get back together, using her recent date with Mark as an excuse.
You gotta give the guy some credit. Most guys would have given up after #1 or #2.