I can understand that if someone has feelings for someone else and sees that person marrying someone different, it can be a difficult and painful experience.
When a situation like this occurs to a person, it's natural to feel a mix of emotions such as disappointment, sadness, and possibly even jealousy or frustration. It can be challenging to see someone you have feelings for choosing another person to be with, especially if they have expressed affection for you in the past.
If you find yourself in such a situation, it's essential to remember that people's feelings and choices can be complex and may change over time. It's okay to feel hurt, but it's also important to respect their decision and allow yourself to heal and move forward. Surround yourself with supportive friends and loved ones, and focus on personal growth and pursuing your own happiness.