He gave formula instead

Im feeling at my worst, how do i overcome this. I just gave birth few days back. Im having problem with breastfeeding my baby directly as she just wont latch on. But i managed to pump the milk and bottle fed her. So i finally get to pump out the most milk, standby for my baby while she's asleep. I was in the toilet when my baby wake up for milk, and when i came to see my husband feeding her formula milk instead of the one i prepared. He throw away my milk thinking that its wasnt warm up and been there too long. It breaks my heart. i been crying non stop. it wasnt easy pump out and it was tiring. I feel like a failure.