Welcome to the boards
Sounds like you are dealing with a lot right now! Navigating your relationship with this romantic interest, navigating your relationship with your family, while also trying to listen to yourself...sounds overwhelming!
A few questions I have so I can better get a sense of the situation:
How old is this guy you've been (non-officially) dating? You mentioned being a "minor" and waiting until your 18th birthday for him to meet your parents, which makes me think he is significantly older than you, is that right?
From what I can tell, it sounds like you did lie to him about your age, a lie you later took responsibility for. But other than that I'm not seeing a lot of lying on your end. Yes, you did mention him to your parents after telling him you wouldn't, but to me that sounds like you trying to keep everyone happy within the tough situation you found yourself in. What I am hearing is a lot of you telling him things (like that you don't have feelings for certain other boys) and him not believing you. And also a lot of him not listening to you when you want to explain what you are feeling or what you have been experiencing. Does that seem like an accurate read on the situation? Or are there other times you have lied to him that you left out?
Would you say he is possessive or jealous?
What has your parents response been to hearing about him? What's your relationship with your parents like?
Are you friends aware you are (non-officially) dating him? What do they think of him?
I'll leave it at that for now
Looking forward to hearing more!