Hi Cutie08,
I think your other friend is right, and I do feel you already know the answer. It is evident that he is primarily looking for what is commonly referred to as "friendship with benefits." Sort of one step above a "booty call", to use a very crude and demeaning term.
If you feel you have a good connection, you enjoy your intimate time together, you're being safe, and you do not expect more -- probably, no harm, no foul. Though I think it is clearly evident you want much more, as well you should.
If though, he has begun "dating" other people while this is going on, I definitely would not continue to tolerate or encourage this behavior anymore. Time to give him an ultimatum. Choose either you or someone else. And be firm with him. Though frankly, I feel you deserve much better.
Having been intimate this early on, I do feel you would likely encounter great difficulty in encouraging him to share a deeper connection, and respect you as more of a subject. He needs time to grow up yet. Forgive me for being a bit crude, yet again, but -- there is an old saying, "Why buy the cow, when you can get the milk for free."
I think it is truly time to move on and find someone more open and sharing; someone who will love you in a much broader context, and will treat you as the caring, complex and complete human being that you are. Don't settle for less than you deserve. Someone better will come along.
