Why do guys randomly stop talking to you in mid conversation Internet and phone wise my crush does this too me... what could it mean?

A lot of the time it is just because they get distracted. If he's watching TV, it's a guarantee that he isn't fully concentrated on you. Don't get mad, we do it too. Everybody does. Other times, it can be just that he forgot what he was talking about or didn't want to offend you. There have been many times when my boyfriend stops in the middle of a sentence because he doesn't want me to get mad about what he'll say next, or he gets too wrapped up in the show he's watching. Joke it off and forget about it, you'll be happier.

THANK YOU :)