DESPERATE HOUSEWIVES - "Goodbye for Now" - Susan makes a decision about Mike Delfino. Meanwhile Lynette takes steps to make sure Annabel (guest star Melinda McGraw) doesn't come between her and Tom, Bree comes to a realization about "buddy" George the pharmacist (guest star Roger Bart), and Carlos' legal problems take a turn for the worse, on "Desperate Housewives," SUNDAY, MAY 15 (9:00-10:02 p.m., ET) on the ABC Television Network. (ABC/RON TOM) FELICITY HUFFMAN, EVA LONGORIA