You shouldn't do things without your partner's permission.
Paul and Jack have been dating for over a year and are talking about moving in together.
Paul wants them to combine their assets.
Paul makes an appointment for him and Jack to meet a financial advisor about combining their assets.
Paul accesses Jack's info and opens a joint checking account without telling Jack.
Jack is pleased to follow the advice they receive and their relationship matures.
Jack loses trust in Paul and balks at moving in with him.