It can be uncomfortable to encounter an unreliable former colleague in a new job, especially if you did not have a close relationship with them before. In this situation, it is important to handle it professionally and find a way to maintain a positive work environment. Here are a few steps you can take to address this issue:
1. Set clear boundaries: Make it clear to your former colleague, A, that you prefer to maintain a professional relationship at work. Politely decline any attempts to become closer or engage in personal conversations.
2. Focus on your work: Concentrate on your own tasks and responsibilities, making sure to meet the expectations set by your leader. By demonstrating your dedication and professionalism, you can establish your own credibility and potentially minimize A's attempts to give you additional tasks.
3. Document your work: Keep a record of the tasks assigned to you by your leader, including any instructions or deadlines. This way, if A asks you to do something that is not within your job scope or conflicts with your current workload, you can refer to your documented responsibilities and politely decline, explaining that you have prior commitments.
4. Communicate with your leader: If A continues to assign tasks or create problems for you, it may be necessary to discuss the situation with your leader or supervisor. Explain the challenges you are facing without sounding like you are complaining or gossiping. Seek their guidance on how to handle the situation effectively while maintaining a positive work environment.
5. Explore internal opportunities: If the situation becomes unbearable and affects your overall job satisfaction, you could consider exploring other opportunities within the company. Talk to your HR department or supervisor about any open positions that may be a better fit for your skills and interests.
Remember, it's important to approach this situation with professionalism and try to find a resolution that allows you to work productively. Sometimes, addressing the issue directly or seeking guidance from your superiors can lead to a positive outcome. However, if the situation persists and negatively impacts your work, it might be worth considering other job options that align better with your goals.