You need to be honest to everyone, especially to whomever you may truly care about and want to be with exclusively.

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Take my hand, this one last time,
Face the world before us, the warrior inside,
In a lifetime of disaster, it's a battle to the end,
Final stand, my life must carry on, And forever, this time.

I think you should be honest.  Break off your relatinships.  It's not fair to the two guys that you're with.  Do THEM a favor and let them find someone that will be more committed.

If you're not ready for commitment, that's fine.. Maybe having a fuck budy is right for you right now.  Some people don't want to commit, there's nothing wrong with that.  But you shouldn't put yourself with people that DO expect commitment.  That's not fair to them, and your lack of honesty can affect the way they have future relatinships.

So what should you do, in my opinion?  Break up with the two guys.  Keep the fuck buddy if you like, since you don't need a relationship or commitment for this one.  And... don't do it again.  If you truly feel like this is a mess, then learn from it.