It's pretty casual but we usually text several times a day. I know that he's working overtime at the moment and that he's away this weekend. But I text him last night and once this morning and he's not replied to either. Is he trying to blow me off?! I mean yesterday he was talking about hanging out in the evening and then today nothing. Why would that be? Should I text him or should I just leave it? Is this a time when playing hard to get would work?