Rule #63: It's a Marathon, Not a Sprint

S5, E4: Abby and Colette (Stephanie Szostack), Mike's ex-wife, clash over boundaries. Jo and Frumpkis deal with a family emergency that leaves Albert feeling challenged. After Delia receives some discouraging news from her fertility doctor, she throws caution to the wind and gets more involved with Tony. Phoebe finds herself unexpectedly drawn to an enigmatic new acquaintance.