Move on. “I hope we can still be friends.” means she is not into you. From what you say she seems to be into the other guy. If you feel good about that you 2 can still be friends. But i would not hope this could become a relationship.
curious open-minded short but not so short guy from Germany. open for conversations/PMs, all topics, all ages, all genders
If your gf said "we could be friends with each other", that may be a final solution for you. However, you will never contact her and she also never send msg to you. You and your gf will be the strangers in future.