Crack the cheater's code

If you think your partner is deceptive and have collected evidence against them, your next step will be the most difficult of all: you will have to deal with it.
If you still don't know if a business is going on, you should be careful and ask first where it was and what it did. If you don't have undeniable evidence that they're behind your back, you don't want a full confrontation.
Think of it as an all or nothing situation. If you don't have enough evidence, not only will you let them know y...