If you’re not a fan of reality TV, then Vh1’s “Celeb Rehab 2” will do nothing to make you jump on the reality bandwagon. What it will offer you is a glimpse of just how dangerously intoxicating the celebrity lifestyle can be. So intoxicating, in fact, that the contestants on the show are all stars seeking to escape the hellishness of various addictions. Teetering between the depressing and the ridiculous, “Celeb Rehab 2” could cause one to second-guess the pursuit of superstardom.–dewayne rogers