words of wisdom from my father.
I know you feel pretty lousy, but while I respect all of that, I have to point out that this isn't the end of the world.
As the Bi-colored Python Rock Snake would say, you are a "Rash and inexperienced traveler" in the land of the heart.
You will get hurt and you will hurt others. Unfortunately the only thing thats new here is that it is happening to you instead of someone else. I know that doesn't make you feel any better, but nothing I can say or do will have any effect on how you feel.
If there is any word of wisdom I could impart, it would be that life takes an awfully long time. Parts of it seem very short, and also seem to be forever. For the most part, we travel pretty slowly and wake up each morning very close to where we were the day before. There is something about how long it took to walk into the woods relating to how long it will take to walk out of the woods. So you have to live with your self, your successes and failures, your new freinds and your old freinds, your new lovers and old lovers, the person you were, the person you are and the person you hope to be. It is wise to be as gentle to them as you can. Even Football has a penalty for unnecessary roughness. Often the aftershocks and collateral damages are worse than the original offence.
You are young, you haven't had many relationships, let alone ones this complicated, so it would be unreasonable to expect yourself to manage it perfectly. Forgive yourself, forgive Robbie, and forgive the other guy and then put one foot in front of the other.
My phone is in my pocket, and I will also check the machine frequently.