What does it mean when a guy doesn't respond to some texts?

So let me explain I've been dating this guy for a month now...and a week ago I dumped him cause I felt like he wasn't communicating enough all of a sudden, it was like he was calling me everyday and then it stopped. Then he had came back to me saying his phone had broke and that's why he hadn't called, so we ended up starting to see each other again. But now its a week later and I feel like I'm back in the same cycle.

So this week he always calls me, like every other day...and then he called me day before yesterday and asked me out for this weekend...So then after we got off the phone friday night I sent a little flirty sexy text msg & he didn't respond..Then I sent one yesterday morning just saying "hey what you up to?" and he never responded. Then I sent one couple hours ago tonight asking the same thing...And he didn't respond again.

Am I looking too much into this? Why do guys respond to some texts for a while and then stop for a day or two or something? Plus I saw him on myspace already today haha so I know if you have time to be on myspace, you should have time to respond back to a text msg. Is he doing this on purpose? Is a guy tired of you if they don't respond to some texts?
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really? I thought I was the one not giving enough attention to him since I had dumped him a week or so ago lol but yeah I'm just gonna lay low from him and step back. We supposed to have a date on saturday, so I'll give him some time to get back to me
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So I haven't said nothing to him...but just to see if his phone was broken or something, I had a friend call him just to see if his phone actually on...And guess what? its on! haha so I know he must have gotten the texts over the weekend..So WTF?
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Ok I dumped him hahaha I got sick of waiting, drove me crazy! lol We had a date this saturday, and he all of a sudden didn't get in contact with me whatsoever this week. So I don't put up with that..hes done.
What does it mean when a guy doesn't respond to some texts?
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