<human>: First a little background - I have been dating my present boyfriend for almost 7 months now.We work at the same place and have managed to keep it pretty discreet and professional. Before we started dating, we had been very good friends for a year.
I have had two bf before this(a month of LDR and a 5 year long relationship that ended brutally a little before my present BF and I started dating).I am not in contact with any of ex-es. My bf has had several GFs two of which are his really good friends and still hang out regularly.
Cut to a few hours ago,I am sitting in my meeting room at work with my BF, and 2 friends(A and B) laughing away at how "A" is staring at his childhood photograph comparing his ex and present GF being in the same photograph. 
Conversation - 
B : Well arent you happy that you ended up with your present girlfriend?(A starts laughing)
ME :  Well obviously he is!(smiling)
My BF :(guffawing like an idiot) Well no obviously he is not(and continues to snigger).

It took me a moment to register why he responded this way.
Moments later, I ping to ask him what that was about. That is when he realises that he might have said something out of the line.
He continued apologising after this.I was hurt and angry.I eventually cooled off and we went off to work.
He has tried to convince me since then that he didnt mean it and wants me to believe that he loves me.

Its quite possible that I am overreacting or maybe not.But I certainly donot want to be the kind of person who is in the dumps a few months down the line because she didnt catch the early signs.I hate to be in a relationship where I am not valued.
And this is a conversation that I need to have with him.
Any help please?
Any pointers?
I am feeling awful right now :(

Can you give me a shortened version of the text?
<bot>: BF claims it isnt always that a person would be happy with his present SO to my face.I am shocked and sad.Dont know what to do!