Originally Posted By: Coach
Here's a list of signs:

50 Indicators of Infidelity.

1. A sudden upturn in their demeanor or outlook on life.
2. Constantly late.
3. More possessive toward wallet, pocket calendar or briefcase.
4. Comes home more often with alcohol on breath.
5. Starts talking about getting together with old friends they haven't seen in years.
6. Starts shopping for new clothes.
7. Starts taking a renewed interest in their appearance.
8. Starts keeping an overnight bag in their car or office, ostensibly for a workout or a game of tennis.
9. Orders dishes or new household items never ordered before.
10. Does not look at other women/men as much as they used to.
11. Starts working late and on holidays and weekends.
12. Express opinions on subjects that they never had an interest in.
13. Takes a new interest in anticipated schedule.
14. Encourages you to visit parents or friends alone.
15. They give you gifts that show a new level of taste or insight about the opposite sex.
16. Car is kept free of paraphernalia belonging to you or the kids.
17. Starts attending extended seminars or conventions.
18. Start using new words and phrases.
19. At odd hours they start remembering things they forgot to do at the office.
20. They suggest that you open up separate checking accounts.
21. Often forget to wear wedding ring.
22. Takes the dog for much longer walks.
23. Makes more phone calls late at night.
24. A marked change of attitude towards secretary, colleagues or friends.
25. Suddenly takes up new hobbies or friends that take them out of the house in the evenings and weekends.
26. They talk about a movie they've seen but you have not.
27. They insist on answering the phone.
28. They call out a different name in sleep.
29. Smell of a different soap from the brand at home and/or you smell freshly showered at 1.00am.
30. They care about how breath smells. New mints, gum, etc. found around house.
31. Uses pre-paid calling card/pager/cell phone for the first time ever.
32. Loses a lot of weight and seems proud of new body.
33. Saddest list item is: change in die-hard pro-life feelings on abortion.
34. Gut feeling. The biggest indicator of an affair is just feeling that it is so.
35. Juvenile behavior and music interests!!!
36. Uses more kid slang than the kids!!!!!
37. Knows all the new pop singers and has CD's.
38. When they lose stuff they accuses you of gettting into their "stuff"....
39. Uses the ATM way too much!
40. All of a sudden, their attitude about people who cheat changes, e.g., "we shouldn't judge because we don't know their whole story."
41."It wasn't a dinner date - it was just a way of saying thank you for carpooling"
42."I never lied about being married - she never asked me, so I just didn't bring it up"
43. Grocery shopping and other excuses to get out "alone."
44.The one difference is that my Wife wants our kids to like the other person because in the back of her head she thinks she will be with him. Very sickening. !!!!!!!!!!!
45. Carries toothpaste, toothbrush, mouthwash at all times.
46. When other person is co-worker, can't wait to get to work each day .
47. Becomes great friends with people going through divorce.
48. Defends other who are/have/will cheat(ed/ing).
49. Distances themselves from those with strong (any) moral values.
50. Gets "coded" pager messages at all times of the day and night

"What is best for my kids is best for me"
Amor Fati
Link to quotes: https://www.divorcebusting.com/forums/ubbthreads.php?ubb=showflat&Number=2879712