I started up a market with a friend one year ago. We are 50/50 partners with no partnership agreement drawn up. The market is on one Sunday a month, during the day. I approached my business partner 4 weeks ago and asked if she wanted to start up night markets in a different location. Being on a Saturday night once a month (a different weekend to our market). She initially said yes, then later that day changed her mind and said she was fine with me going ahead with the night market without her. I plan on running them with my boyfriend. Now she has come back and said that she feels it is a conflict of interest and doesn't want me to do them. Legally under commercial law, where do I stand?