You just be that adorable, sweet, happy, confident, calm, decisive, wonderfully warm person we all know and love and leave that wary stranger on the doorstep!!
He will see the changes even if he NEVER says a word!
Don't worry too much about what EVER went on while he was absentia....just let him deal with that!
If he wants to ever talk....I guess you can decide if it is important to you any longer at that point....it may end up to be totally irrelevant!!!
ps: got a kick out of the fact that old GF wouldn't even return his call !!Ouch!! hahahahahah