Synopsis:
Pete is upset over being passed over for a promotion. Don backs out on going with Betty to her family's house for Thanksgiving. Betty takes the phone bill to determine who Don's having an affair with. She doesn't figure it out, but talks to her therapist about how she feels about Don's betrayal. Harry tries to get his wife to let him come back home. Peggy is given another opportunity at writing, and she goes to the hospital and has a baby.
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