I'm pretty sure she stated it wouldn't really go over well. She had to keep the girl she made out with, from her past, a secret from them as well.
Currently Holly's parents are the real villains of the story.
As an aside: I'm still struggling coming to terms with Lena not also having some form of fit tag or other variable for her appearance, excluding tattoos. Like she doesn't need to be muscle mommy Emma, but that there hasn't been a change to her butt, thighs, or core yet despite Ian having a similar variable and Holly being forced into her fitness overhaul. I'mma be big mad if Stan gets an overhaul before Lena. I may just even write a message on this forum expressing my disappointment.