Reheating unused breastmilk a second time?

Ceyonia • 22. Married. Mommy of Titan Amari Smith 😌.
So this morning at 4 am by husband warmed up 2 bottles of pumped breastmilk for our son. Baby wasn't as hungry as he usually is & only ended up drinking one bottle so I placed the unused bottle back into the fridge immediately. I'm wondering if that bottle can now be reheated again to give to my baby . The bottle was warmed up under warm water from the faucet & was still partially Cold when my husband started the feeding . Is it safe to reheat it again?