My ex doesn't understand it's over ;-(?

I broke up with my bf about a month ago, he called me crying a few days later begging me to not leave him. We had a wonderful relationship but it all changed after a year. I became bored, we were stuck in a rut, a routine that we couldn't get out of and I just stopped feeling the spark, I tried to think it was a phase I would get over but I had to let him go. We are 19, the thought of marriage scared me away, he mentioned it more than once. He is aware as into why I left him, but he knows I care about him a great deal. I was to weak to not give in to his pleas.... I told him that perhaps we could work something out in the future, and we planned on meeting up to hang out on July 4th. Honestly, I miss him now and again, but his lack of dignity to simply not let me go really didn't help. He hasn't changed his relationship status to single, I have no facebook, but my best friend asked me why he hasn't changed it. IDK. I feel like in the far future we may have a shot at trying again, but July 4th seems to soon. I did want to hang out that day, but now I'm wondering if that's a good idea? I want him to understand that as for now it's over, and I honestly think it's to soon to try again. I know there is no easy way to tell him that, but perhaps there's a way to make it a little bit easier on him? :( Help?