<human>: Give me the gist of the text in a nutshell

We've been seeing each other for about five months but were not officially together. For the first couple of months we were pretty closed, he did have some issues with his ex though (His ex tried to use his friend to get back with him). I didnt feel threatened or whatever for couple of reasons, were not officially together, I wasnt that attached to him that time. 

Around November last year, he started going out again with his friends which I am perfectly fine with but it got to the point where he'll go out in the afternoon until midnight and wouldnt even reply to any of my text at all until like the next morning and do the same thing again. He said he doesnt look at his phone, or the battery is dead. But as I was getting to know him, he's always on his phone, like ALWAYS so I didnt believe him. Tried to end what he have but he refused to do so. 

I got kind of tired on trying to get his attention so I did what I think was right.. Not text him until he texts me first. I guess he noticed that I've changed, apologized and tried texting me all the time.

I'm pretty honest to him about everything, even when I have a crush on someone. This semester, I told him I have a crush on this guy from my class (my friend's friend, met him around november but didnt talk to him.) And I did mention to my "boyfriend" the guy asked for my number and the guy's reaction when he found out I have a 'boyfriend...' Since then, my boyfriend started being sweet and nice and kind of clingy. He also said he doesnt want to lose me and he thinks the other guy is trying to hit on me.
<bot>: Is he acting like this because he knows I can leave him? Why was he ignoring me? Taking advantage that Im into him? Opinions please, I'm really confused.