Advise?

My mom and dad are divorced, they divorced when I was about 2 but then when I turned 3 my mom married my step dad and they were together till I was 14, and he is more of a father to me than my biological one (my actual dad has never said I love you in person and married a woman who hates my guts and tried to make me feel unwanted every time I visit him) anyways, my step dad was always so controlling with my mother, but when they got divorced he couldn’t control my mom anymore so he switched to me (like it wasn’t bad enough already) he is COMPLETELY against me dating or even meeting guys. I’m 15. My freshman year of high school, he actually tried to homeschool me so I wouldn’t meet any guys. Some of you might think I’m joking and he was just messing with me but I promise you he wasn’t. His mindset is completely closed off and he think everything he said and does is right. Like I said I’m 15 and he gets mad at me every time I ask him to think about me dating. My mom is much more understanding. I’m a sophomore in high school and I like guys. (Oh well) anyways so I have a boyfriend. And he’s about to turn 17, his family loves me, my mom loves him, but it hurts me knowing my dad is completely against it and that he’s never going to open up. Zach (my boyfriend) is amazing and I hate hiding him but my dad would actual ground me for a year and take everything away. Idk I just want to know what y’all think about this. Thanks❤️