I can see meeting the friends in the first month going out to group activities. But the kids?? No one meets my kids until the relationship is firmly established. Even the family isn't going to meet him for awhile - mainly because if I'm visiting family, my kids are with me!

Like Dante said there could be many reasons .. he could have fallen hard (the constant calls, seeing each other, texts etc may point to that) and is now scared of how quickly that happened. Or, as MyI said, maybe he's tired of being the one to initiate everything. Give him his space. Giving space could mean a lot of things as well ... he doesn't want to see you for awhile and will contact you when he's ready, which leaves you hanging -- I'd carry on with life on that one. Or it could mean just that, he needs some space, some breathing room and just wants to cut back on how often you see each other or talk but still wants to carry on with the 'get to know you' stage. The only way you'll know is to ask. Communication will go a long way to figuring out where you stand. Don't hound him for an answer, just ask him once what it is he means by that term. If he can't tell you then he doesn't have a clue what he wants then it's up to you whether you want to wait around or walk away.