When shameful things come back

When the past seems far away... and smacks you in the face. I've been having lucid dreams. These dreams take me back, remind me of moments from the past. I've been transported to my own personal mishaps that I had long ago forgotten. I have these old memories that come out of nowhere. Some shameful and not great. Particularly, my early days in college. I had a girlfriend in high-school who was a really wonderful person. I don't say this in longing for her, but just as honesty. Who she is and who I am are incompatible, but that doesn't mean how I treated her was right. I didn't abuse her or insult her, but i just broke off communications coldly. I knew we were going separate ways, she to the East me staying West. I could of lived life, and pretended the day was far away, but I instead coldly broke things off because of the looming distance, and knowing that things were not strong enough compatibility-wise to keep holding on. This seems simple and not so bad in retrospect, but the story is not over. I made a fool of myself and her many months later. She was visiting friends at the school I went to, mutual friends. I hung out with them, and was overly drunk. She was staying with them in their dorm room on the floor. I somehow thought it was a great idea to hit on her after not speaking and breaking up. She was cordial, nice, and I was a tool. I tried to get with her in the dorm room that everyone was in like a stupid asshole. That's the story. My friends called me out and I'm not sure if I ever properly apologized to her or them. This memory had been blocked from my mind for so long but just surfaced a couple days ago. Naturally, being who I am now I feel awful and creepy. It's too late to tell her my guilt, and doing so wouldn't change anything. Regardless, its a moment in my life that I have to live with and feel shameful about. I just hope that she has moved on and it wasn't a frightening or terribly embarrassing moment for her.