<human>: Can you succinctly summarize the text in 1-3 sentences?

Fresh off an extensive conversation with my girlfriend's mother, I decided to come to you, reddit. The entire conversation was her shouting at the top of her lungs that she is going to have me arrested and that I'm never to speak to her daughter again. 

She found out we are sexually active (considering neither of us was a virgin before each other, least of all her, I was shocked this bothered her so much). And ever since, she absolutely hates me. She takes her daughter's phone and forbids that we see or speak to each other. She's also called me a pedophile, which confuses me for many reasons. There is, of course, the fact that she is older than me, and we are both 18 or older. There's also the fact that she worships her daughter's ex, who is 24 and dated her when she was 16! And they were sexually active! He also beat her, but it's obviously important to protect her from her loving younger boyfriend?

So I guess I'm just totally in shock. What the hell do I do? I tried to reason with her but she just screamed over my words. Her daughter is not a child anymore. I'm worried because I love my girlfriend more than I've ever loved anyone, and this seems like a massive problem regarding our future together? 
Other fun facts- she'll move out soon and neither of us will ever live near where her mother does again. We've been together 10 months.
<bot>: How to deal with girlfriends mother who refuses to let me see her and hates me now that she has learned we are sexually active?