It hasn't been revealed yet, but Jarvis has a kinda-sorta 'close' friend at the Gentleman's Club, named Harrison. And Harry's interaction in the story will depend on the routes taken. ie. a bit of jealousy if Jarvis starts getting too close to Kody, or maybe Jarvis and Harry can end up together.
Picking the second or third choice in the menu will leave your options open to explore, without locking Jarvis out... although he might get a bit snippy if you hang around the other guys.