Crying is a form of release. Usually our feelings in dreams are more magnified than what they will be in real life. For instance, in real life you may be disappointed at missing a missed opportunity like the wedding you mentioned but in your dream you were crying (more exaggerated). In a dream you may be super excited but in real life you will be happy.
This dream could be helping you to be more in tune with your feelings. It’s okay to express your emotions. It’s okay to cry. It’s ok to be happy. It’s ok to be frustrated. It’s ok to let your feelings out.
Not an interpretation necessarily but giving you permission to be more aware of your feelings and to embrace them.
Hope this helps.
Blessing!