Look, you wanted to have a better understanding of why this guy is blowing you off. I'm telling you why. This is how guys work, we produce 50 times the amount of testosterone you do - sex for us is like taking a p!ss and a wall will do just as well as the bathroom of the finest hotel. If he's come to the conclusion that you are more effort than you're worth to get that satisfaction he'll simply find a better opportunity elsewhere. My guess is that he's already done so. Yet you're presuming that he should introduce you to his daughter, he should want to include you in his life more and he should spend more time with you. All I'm saying is why? What's the point? After 2 months you're no longer worth the effort. You want all of the rights and priviliges of having a boyfriend with this guy with none of the reciprocation of intimacy. Would you buy a car you could only sit in and look at, but could never drive anywhere? You are all show and no go, this guy's figured it out and you're p!ssed off because he's phasing you out now.
In fact, why do you even need any advice here? If you haven't slept with your 'boyfriend' in the 2 months you've been together it's pretty obvious that you don't have the passion or desire for him necessary to be in a relationship. It's laughable that you'd even be jealous at the prospect that he might want to see someone else. Why would you even care? You're not hot enough for him to want to fvck him. No, you'd rather make him the bad guy, the 'lying sack of sh!t' that's so much easier than putting your own motivations under the microscope and seeing where you've deluded yourself. The only thing this guy is guilty of is pandering to your idea of a relationship for 2 month while he's thinking you might actually come around and do him sooner or later. Well now it's later and no, you wont be meeting his daughter and no, he wont be taking you home to mom & dad and no, he wont be introducing you to his friends - you're simply more effort than you're worth.
And no, you don't go and fvck every guy you're attracted to, but definitely the ones you actually call your boyfriend if you expect them to be exclusive to you. You're a little girl who hasn't come to the understanding that no guy MAKES you his girlfriend, you decide that. So go respect yourself all you want, it wont make this guy want to spend any more time with you.
For a guy, lust, passion,desire always comes before love.