What are the Chances?

Some guys inspite of most... are actually good guys, my boyfriend and i have been together for not that long but since day one he has been great. He is the kinda of guy you just can't help but get along with. He always makes me smile and he has this amzing way of making me feel like this is where i am suppose to be, but i am not a blind girl i know that the facts about guys and the chances of meeting a good one is like one in a million so what makes me think that my guy is so different from the others... well honestly i think it is because he doesnt hide anything from me. There are things he does that i really do not like but he has explained to me how he feels about the different issues i may not like and has never once lied to me just to make me feel like i have won the fight or even to make me feel better. And though it may not sound all that nice i have learned that to make a realationship work you have to win some and loose some, and a guy who will fight with you about it over lying to you is a hell of a lot better if you ask me... so my story goes on. My boyfriend is a pretty good catch... things have been going pretty good lately but the other day i notice his ex girl friend who had been wiht for a very long time had called him. So i wonder about it... who wouldnt you know? He didnt try to hide it but he also never explained it which makes me wonder even more... but i mean i still have the occasional talk with the ex here or there though it never means anything... however last night my guy didnt seem very interested in me... and being that normally we have sex, and if not that then atleast some passionate kissing before bed... last night nothing he just wanted to go to bed... then today  we took a shower together and in the shower... nothing he hasnt seemed very open to me at all, and i cant help to wonder if it had anything to do with her calling... I know that as a girl it is very hard for me to move on, and guys always seem to do it so easy but since my guy isnt your typical guy is it still that easy for him to move on, and also even if he does move on will that leave me open to be compared to her forever... to make him love me do i have to make him love me MORE then he loved her, or is it two different things...