It turns out Faultline isn’t the only public critic of T-Mobile’s two-faced behavior of late. While our qualms are firmly with the telco’s tainted TV strategy, friend turned foe Dish Network is ruing the day it helped create the monster that would eventually become New T-Mobile. The US satellite operator has accused the uncarrier of some very questionable carrier-like practices, throwing shade over a relationship that had blossomed after Dish Network helped clear the way for T-Mobile’s mega merger with Sprint a year ago, by buying the Boost Mobile division. Dish has absolutely lambasted its former friend, writing in a filing to the FCC last week (not an April Fools’ joke despite being dated April 1), “As T-Mobile celebrates the…