<human>: Some background. The guy is recently divorced, has one child, and was a marine. I've met him twice in seven years because he lives pretty far away. I don't know much about him. We just intermittently talk, but almost every time we talk again he has a new number. He has excuses like he broke his last one, he switched carriers, he got a pre paid phone, etc. This past time he claimed he got a pre paid phone and I informed him he said that last time. He immediately claimed he broke his last one. I have caught him in lies in the past and am wondering, should i avoid this guy?

Can you provide a brief overview of the text?
<bot>: he changes number a lot, is known to lie, and i don't know much about him. Is the number changing understandable, or should I stop responding?