By Daniel Bates It’s been an ugly past 48 hours for Celtics head coach Ime Udoka, but new details being reported by TMZ Sports and Entertainment Tonight are making matters worse. According to the Hollywood outlets, not only did Udoka have a relationship outside of his marriage with a Celtics staffer, but the woman in question also handled travel arrangements for his wife. Per Kevin Frazier of ET: “According to well placed sources, even after the affair was discovered by the Celtics, the female staffer continued to work with [Nia Long] on her move to Boston. Nia did not learn about the affair u…