should I confront my parents about this

okay I’m gay but my parents don’t know this. mainly because I’m always flirting with girls in front of them. I was going to tell them one night but I over heard them talking about how being gay is disgusting so I went out. I’m currently dating this really nice dude I cant even bring home because of what they might do or say. I cant even tell my friends. I would love to be more open and show I care about him in public but I was never one for ignoring people. My older sister found out and she is of the understanding type. She never once said anything hurtful or even to the rents. she asked to meet the guy I said okay fine. she was very polite and never once said anything stupid like some not all straight people or family members. I guess I just hope the rest of my family would be just as understanding. Because Davis is a really nice person. He may be clumsy kind of a idiot at times. He may not be the academic type there for saying he’s not the sharpest tool in the shed. The only thing he doesn’t hurt him self at is doing soccer I know weird. He’s hot headed running into things with out thinking. He has anger issues but is never hurtful to people he cares about he doesn’t hold grudges. He’s always finding new ways to get him self in trouble I always end up helping him out. He always makes me smile and laugh even when I’m having a terrible day. Like one day I was walking in the park I was mad because my older sisters boy friend was treating her like a beer wench. Anyways me and Davis run into each other literally we were both listening to music not paying attention. Anyways he listened while I vented. then he said lets go this way it’s a short cut and I said wait don’t go that way. Then he tripped and fell down a hill landing in the lake I laughed. he isn’t the type to get mad over something like that. So he looked at me while I was laughing and he started laughing as well. I went to help him up and he pulled me in. We have so much fun together and were happy. I just want my parents to understand and not freak out. I would like them to meet Davis but I’m afraid dinner with the family might turn out like a sudden death match anyways I need help!