Dreams involving ex-partners often reflect unresolved feelings or lingering emotions from past relationships. In your dream, encountering your ex and his new girlfriend suggests that you may still be processing feelings related to that relationship. The setting of a hangout place could symbolize a desire for comfort and familiarity, while the music lesson aspect might represent a need to express yourself or learn from past experiences.
The jealousy you felt towards his girlfriend may indicate that you are comparing your current relationship to the past, or it could signify insecurities about your own relationship. The fact that your ex dyed his hair pink might signify a change in his life or personality that you are not accustomed to, which could evoke feelings of nostalgia or longing for the past.
When your current boyfriend appears and you wish he wasn’t there, it may reflect a conflict within you. This could suggest that you are grappling with feelings about your current relationship, possibly feeling suffocated or uncertain about where it stands in comparison to your past.
Overall, this dream might be urging you to reflect on your current emotions, the state of your present relationship, and any unresolved feelings you may have about your past. Consider what aspects of your current relationship you might want to address and how you can find closure regarding your ex. It may be helpful to communicate openly with your current boyfriend about how you feel.