He said yes but his parents said no

So my boyfriend of three years finally proposed last month and I was on top of the world we talked about marriage for so long and he kept saying his parents aren’t ready but now he’s like nah I’m doing it I love you and I don’t care what they think—but then his mom called me yesterday. Sweet as pie tone but straight up said they had already picked a girl for him from back home she’s a doctor they’ve been talking to her family for months. He swears he told them no way I’m marrying you but he hasn’t confronted them in person he says it’ll just cause drama. We’ve been living together for a year and his mom still hasn’t visited she makes excuses. I found out they went to the temple last week and prayed for his future wife like it wasn’t me. I don’t want to be that girl who breaks up a family but I also can’t pretend this isn’t tearing me up. Sometimes I wonder if he even believes in us or just says it to keep me happy. His dad barely speaks English but I’ve tried so hard to connect. Last Diwali I cooked for hours his mom complimented the food then said You’ll make someone’s life nice one day. I cried in the bathroom. Idk what to do anymore