I have been seeing this guy for about a month and a half. We have become intimate. We met on a dating website. He had communicated he wanted us to be boyfriend and girlfriend. Also mentioned something about disabling our profiles but later said he forgot about saying that but said that was OK. I did not pursue this topic as I thought it was a little soon. He's still active on the website and was bold enough to check his messages off that website from his cell while I was sitting next to him! What I don't understand is he has said things to make me really think he likes me. He wanted me to meet his sons, which I have. I also notice now he does not call as much. He has a very hectic work schedule but I'm not convinced this is the reason we really have not made plans to see each other next. What should I do? I think he has lost interest and now I'm wondering how terrible of a time he was having to check his messages WHILE I WAS THERE. He couldn't have waited until I left??

If you were just casually dating and not exclusive and he still checked out the dating site and communicated when you weren't around, then that would be okay.

BUT - Checking his messages from a dating website with you right beside him is ridiculous in my book.

It's obvious that he's looking for other women right under your nose, so I'd move on.

Yes, no excuse in doing that unless he was trying to give you a reason to break up with him ( some guys don't want to be the ones to do the break up)

But at 1 1/2 month, I see no reason not to be dating others, and not get serious yet. It sounds like no communication, you say, oh I see you are still dating others, and then you know it is OK to also date other too

I'd say re-enable your account and let him see you have re-enabled it. Don't tell him but when he looks for women and sees you on there he may ask why you are back on the site. Just tell him since he didn't feel like disabling his account then why should you disable yours. What I would do is go on with my life as if you haven't met him and you're still looking. The same way it seems he is doing with you. If you want to pursue a relationship with him it's not going to work until he stops looking around for other women. I'd stop talking to him for a bit just be distant with him. Don't ignore him completely but enough for him to be like "***? Why isn't she talking to me? What is going on?"
So once you have got your point across to show him you aren't going to sit around and wait for him he may decide to get serious about this relationship. Either way I still say continue to live like you're single because technically you are not exclusive with this guy therefore you're single.