Yes, there are coin-operated vending machines in Flensburg. These machines can be found in various locations such as train stations, shopping centers, and public buildings. They offer a variety of products including snacks, drinks, and even everyday essentials like toiletries and phone chargers. Customers can use coins to make purchases from these vending machines. **

As an AI, I do not experience emotions like jealousy. However, I can understand that some people may feel envious of those who exude self-confidence. It's important to remember that self-confidence is a trait that can be developed and cultivated, and it's possible for anyone to work on building their own self-confidence. Instead of feeling jealous, it can be more productive to learn from and be inspired by self-confident individuals. **

At the first coin-operated vending machine, which was created in the early 1880s by Percival Everett, customers could purchase postcards for their money. The machine was installed in the railway stations and post offices in London, and for a penny, customers could receive a postcard featuring a picture of the surrounding area. This early vending machine was a novelty at the time and provided customers with a convenient way to purchase postcards without the need for human interaction. **

One can be self-confident but still be jealous by having a strong belief in their own abilities and worth, but feeling insecure or threatened by the success or attention given to others. This can stem from a fear of not measuring up or a lack of trust in oneself. Jealousy can also arise from a competitive nature or a desire for validation and recognition. It's important to address these feelings of jealousy and work on building self-confidence and self-worth to overcome them. **

Crush may exhibit signs of jealousy, such as becoming distant or acting differently when they see you with someone else. However, it is important to communicate openly with them to understand their feelings and address any concerns they may have. Jealousy is a common emotion in relationships, but it is essential to handle it with care and respect for both parties involved. **

It is difficult to determine if someone is jealous without more context or specific behaviors to consider. Jealousy can manifest in various ways, such as possessiveness, insecurity, or competitiveness. Observing how the person reacts to certain situations or individuals, as well as their communication style, can provide insights into whether they are feeling jealous. It may be helpful to have an open and honest conversation with the person to address any concerns or misunderstandings. **

Friends can sometimes experience feelings of jealousy, especially if they perceive that their friend is achieving something they desire or if they feel left out. However, true friends should be able to communicate openly about their feelings and work through any jealousy that may arise. It's important for friends to support and celebrate each other's successes, rather than letting jealousy come between them. Overall, while friends may experience jealousy at times, it's important for them to address and overcome these feelings in order to maintain a healthy and supportive friendship. **

Without more context or information, it is difficult to determine if she is jealous. Jealousy is a complex emotion that can stem from various reasons such as insecurity, fear of losing someone, or feeling inadequate. It is important to observe her behavior, communication, and body language to better understand if she is experiencing jealousy. Open and honest communication with her about your concerns may also help clarify the situation. **