Strong relationships are built on trust and honesty. If one partner seems to have done everything right and has given the other person no reason to doubt, then there should be no problems at all. That would be ideal, but sometimes insecurities creep in and ruin even the best relationships.
This is what happened to a guy whose toxic girlfriend needed to know exactly where he was at every moment. The one time he forgot to text her, she blew up at him and immediately thought he was having an affair.
More info: Reddit
