Kirk St Moritz really fancies Kate. He wants John's help to get Kate to go out with him.
Only for John to inadvertently spend the night together with John.
When John goes to see Kirk. He finds out that he is living a pathetic life with his mother.
His real name is Eric Morris, he has never been married. As for being in an elite military unit, that is the stuff of fantasies.
The final episode of the first series has John and Kate finally getting together in a fashion. Even though they were drunk at the time.
The reveal about Kirk's character was fantastic. He really was a brilliant comic creation by writer John Sullivan.
It is Peter Blake who really really brings Kirk to life. By comparing the same character from the US version of Dear John, I can really appreciate Blake's skill.