Do not feel sad. It is not that they don't love you, you have to think from their perspective:
There is a being 700+ times bigger than you, who you don't understand and don't know their intentions. You've been taken away from your home, parents, and any one else you knew, and placed into this new and completely different environment. And this giant keeps trying to grab you and making weird noises at you. All around a very stressful situation.
That's how your babies feel. So you have to build their trust: let them come to you when they want, place treats in your hands, but don't force them to take them. It will take time, but soon they learn that you won't harm them; and will even accept as part of their colony.
But I repeat, try to be calm and composed when you are interacting with them. Feeling sad and thinking they don't love you is not a good approach. We tend to give human characteristics to our babies, but that just doesn't apply; our babies don't hate or are mean and dislike us. They just are afraid at first, in the wild they are prey animals, and anything bigger than them is dangerous. But with effort and patience, they learn to trust us and the bond you form with them is amazing.