Heartbroken

Just found out my boyfriend of three years has rekindled a relationship with his baby mama. And he didn’t even tell me, I found out on Facebook and they’re living together. Then when I confronted him about it, HE STILL LIED! I have all kinds of emotions but overall, I just feel like shit. Like, what about me made you decide I was a girl that deserved to be cheated on and doesn’t deserve love?