Whyd this guy never txt me back?

okay so its 4th of july today. i was txting this guy we've hung out twice before and kissed and im pretty sure he likes me. so he asked me what i was doing tomorrow(it was the 3rd then) and i said picnic and swim hbu and he said prolly b bored lol and i said we should hang and he said yeah cuz we hadnt hung out in like foreverrr:( (even tho its only been like 10 days lol) so today i txted him like at 230 and he NEVER replied!!!!!! why??? i dont get it plzzz help!!! and do i txt him agian or wait??? i dont get it. and also how do i ask/tell him that if were just like you know friends with benefits or makeout buddies.... cuz like we've hung out and kissed twice but he hasnt said anything.. but were still new at this sooo. please!!!