This is what I have been saying about Beasley .. this season he's been different. He's gone from being a team player to being all about himself. I don't know if it's the contract year, the rap career, the lack of catch opportunities or jealousy of other people getting all of the attention and fan recognition. Given how his wife posts on twitter, it very well may be that she's been in his ear pushing him and its affected his attitude because he definitely seems different.
This goes further than his tweets. I have noticed several times on touchdowns by other players where he turns and slowly walks off the field. He seems like he is not excited or happy for the player who scored or the team scoring because he didn't score. The weird thing is I don't look for it, but I notice it when everyone is running to cheer the player who scored and he simply turns and walks away.
When you add in his comments, tweets, etc. it just looks like he's only worried about himself now. Most fans said I was making something out of nothing not too long ago when Gallup's brother died and Cole's first comment was something like, "Me dropping that touchdown pass really doesn't matter." when most people would never say that. They may say something like, "winning and losing doesn't matter when that happens" but most people don't take that moment to downplay their own mistakes.
My guess is that he wanted and expected a big contract after this season and he likely felt like this was his year to be the number one guy to get that big contract and it just did not work out that way.
To be clear, I don't dislike him. I was a fan of his coming into the season and was hoping he would get that big contract. It's very disappointing how it has been playing out. I really hope he regains his focus on the team because if he does, the contract situation will work itself out either with the Cowboys or somewhere else.