Once I was dreaming that I dated a girl and went out for dinner with her That was quite nice, but I never got to meet her again in any other dreams.
My favourite one though is the dream where I met this girl who is exactly like me (just a female version of myself - so a female counterpart I suppose). I met her and I thought "OMG that must be me..... but she is female..". So we just did some awesome stuff like stargazing and found out that we had exactly the same hobbies. And I felt really complete next to her.... Somehow like she was a missing part of myself. It was just perfect. I met her once more in another dream and I'm planning on meeting her again in a Lucid Dream and going to space with her Sounds like a "dream romance" haha