Ash,
In any bunny couple one bun will be dominate and the other has to be submissive...and only the 2 rabbits can work out who gets to be boss. That's what it sounds like has been going on with your boys....and eventually it worked! It's not unusual for bonding to take anywhere from several days to a couple of weeks..... I had one bonding that took 12 weeks, I thought I was going to lose my mind. And I have a friend who's spayed little girl insists on being an only child.... she's vicious to all newcomers, so see how lucky you are????

Congrats!!!!!! Persistent thy name is Ashley.