I wanted to message you directly. I don't really like talking about something serious with eyes everywhere, but I figure if this is the only way I can communicate, then so be it. I get your sad about this. I can understand that. I know losing someone that is important to the team and feelings like there is nowhere else to go. I know what that is like. I can understand what you mean when you say that you don't want to quit the project because of us, and that shows us who you are as a creator. Humans always wanted to seek validation from others. That is just how we are made.
Though, you have to understand that just because someone left, it is not the end. It is a setback. My advice. Take a break. Take some time for yourself and to think to yourself. If this is something you truly love, then you will come back stronger. If not, then that is no problem either. It is still a great game nonetheless. Memories were made and people had fun. Not everything is going to workout. Think of it like a marriage. You love and work with your partner and you can't imagine a life without them, but then you both argue a little more and then finally the worst nightmare of yours becomes a reality and you get a divorce. You are going to feel down. You are going to feel sad. You are going to feel worthless, but you aren't going to stay down forever. Eventually, time will heal things. Time will give you things to think about. Time will give you the ability to form a new plan and before you know it, you are back stronger than last time.
Remember. These were your own words. "Bad news...(Don't Worry! Nothing gets cancelled!)". Not the same context, but the same meaning.