Trust is difficult to build, and easily broken, as anybody who has ever been in a relationship would know to tell you. One woman found out 3 days before her birthday that she owed thousands of dollars in rent to her landlord, who called her up, absolutely furious. She'd also been emailed a breakdown of the full sum, which shook her to her core. She had had a feeling that something was up and had asked her boyfriend multiple times for proof of payments in rent, but he became angry and said, 'Don…