I'm with my girlfriend for 6 years but I dream I was with someone else and felt so happy
Dreams about being with someone else other than your partner could come from a wide variety of sources, including general dissatisfaction with the relationship or simply a curiosity about other people. However, these dreams are not necessarily a reflection of reality or a desire to cheat on your partner.
It's possible that this dream reflects a current feeling of dissatisfaction or boredom in your relationship. It could be a sign that you feel like something is missing or that you're neglecting an important aspect of your life. You may be feeling like you need a change or a new experience.
It's important to note, however, that dreams can also be influenced by our subconscious minds. The person you were with in the dream may represent a quality or characteristic that you admire and wish to incorporate more into your life. It's also possible that the dream was simply a reflection of your subconscious mind processing and exploring different scenarios and possibilities.
If you find yourself having recurring dreams about being with someone other than your partner, it may be helpful to examine your current relationship and explore any issues that may be causing dissatisfaction or discontentment. It may also be helpful to talk with your partner and openly communicate about any concerns or issues in the relationship.