I came out to my mom on the sofa when I was 13. I was like, "Mom, I'm bi." and without skipping a beat she said "No you aren't." And I mean, I identify as a lesbian now so I guess she was right? I came out to dad when I was 17 in the car and he immediately started trying to guy talk with me about what kinds of women are attractive and I was mortified. Over 10 years later and he's still way more cool with my sexuality than my mom, mom still clings to the idea I'll "find the right guy someday".
Ugh gross. Sorry about your mom.