Monica's coach & hitting partner is Mike Sell. He has been coaching her for some months I believe, and he also used to play on the mens tour, retiring in 2000. I dont think he was that successful, apparently I heard Billie Jean say he went Top 100 once but I cant remember.
I saw her hitting up with him numerous times during my Open visits this past week, IMO they make a great team
I think Janie might mean Paul Allen, the Microsoft billionaire.
They dated in 1996-7, and he helped her out when her dad was sick, but I read a profile of him in GQ a few years ago and it said they broke up in 1997. Since then, no confirmed rumors of any romance for Monica.
I've read about Paul Allen too, though I've never heard Monica confirm the relationship. When she came to Moscow in 1998 she refused to talk about him. He's also been linked with Jerry Hall (Mick jagger's ex).
Monica also became a big Jimi Hendrix fan after she was stabbed, and she met Paul Allen at the opening of the Jimi Hendrix museum, or perhaps his induction into the Rock n Roll hall of fame.
I've never seen Monica say a word about it, but the magazine article described how he had a lavish party in Venice in the spring of 96 (I think that was the date) and she was the hostess, all bedecked in fabulous costume and Venetian mask!