Marriage in trouble

File: 448x249px-LL-3dd0d362_what-do-you-mean-you-people-tropic-thunder-movie-1309633407.jpg (35KB, 448x249px) Image search: [Google]

35KB, 448x249px

Posting here cos /soc/ is now just whores and I can't think of where else.

So my wife has a friend who isn't gay but manages a gay rugby club and they have been friends since school. She is spending a lot of time with him recently and assures me to the point of me being offended that it's a friendship.
They have just started a business together so will need to spend my time together whether I like it or not.
It's not that I want her all to myself all the time, simply that my jealously is unmanageable.
Any advice for not being a suspicious controlling husband?

PS - She 'caught' me talking to an old female friend where I made a couple of off the cuff innuendos and I was 'flirting'.