Little -- Don't get sucked back into his drama. Try not to wonder about what he's doing or thinking. It's pointless and a waste of your energy, which you could be using to make your own life better. Just carry on with your life. Don't bother with the WHY because your BF isn't thinking clearly, and any excuse he's given you is likely coming from his need to justify his actions.
Chin up!
M: 43 H: 39 D: 14 Married 15 Together 16 BD: 6/2014 S: 8/2014 OW revealed 10/2014 Instigated dissolution 12/2014, in progress So over it!