Eren X Reader Romantic, Part 2

!!!EMERGENCY!!!

So this is only an author note but I need your guy's help...so this is how it started:

So I was watching Junjo Romantica on DVD when my mom came in and saw the two kissing.

My mom: Sick, why are they kissing?

Me: *fangirling* Because they're in love!!!

Mom: You like this stuff!?!

Me: Yes! Its adorable!

Mom: You know its a sin...

Mom: I hope you never become like that

Well the issue here is...I'm pansexual and after that, I'm afraid to tell her I'm dating a girl (the same gender as me) and that girl happens to be one of my best friends that always comes to my house.

So I need you opinion...should I tell my parents or keep her a secret?