What I have to give you is in two parts, actually. I suppose I can do this part here:
I am sorry. To the both of you. I am sorry for my behavior for the past few weeks, for my jealousy over this new situation you two are in, for not being completely supportive in my actions. They were not in line with my words and I want to apologize for that.
I am happy for you both and I will admit that my feelings were hurt, but that was due to my own internal conflict rather than anything either of you two did. I just want you both to be happy and for us to return to our easy friendship of earlier times.