there are so many potential answers to this. but the one I believe is this...
i bet a trillion dollars he is what we call an A$$hole.
and immature, and a loser, and ... yeah...
i bet, deep down inside he really does love you. Or, he wouldn't say it and show it.
he has some serious deep rooted insecurities and emotional issues that he is so messed up in the head he is too woosy to to let his friends see him whooped on a girl because he can't bear to confront the funny remarks or bullcrap his friends might say. like, he cares more about what his friends think because they are what makes him feel like a man and if they see any sensivity, he will feel kinda ... lame...
he "ACTS" hard and is fake with those people but he really isnt.
he lies to his friends about something tiny for vrtually no reason, he WILL lie to you. maybe not about huge deals...but about petty stuff that doesn't even matter...just to "not make yuo mad" he wants everything to always be drama free and hell fib to make sure of it.
not, like you care...
but, ITS ONLY BEEN A MONTH. DONT BRING IT UP TO HIM, DONT WORRY ABOUT WHYY HE DOES IT. DONT LET IT BOTHER YOU. JUST TAKE EVERY DAY AS IT IS...LET THINGS HAPPEN NATURALLY AND LET YOUR RELATIONSHIP RUNS ITS CORSE. I BET, IF YOU JUST SIT TIGHT AND RELAX AND STICK BY HIS SIDE, VERY SLOWLY, BUT SURLY, EVERYONE WILL KNOW, WITHOUT HIM EVEN HAVING TO SAY ANYTHING, THAT YOU ARE HIS WOMAN!
good luck ****