My baby hates me...

My LO is 8 months old and I feel like he hates me. He gets so excited when his dad comes home from work or when he sees his grandma (she lives with me so it is frequently through out the day) but he doesn't get excited when he sees me. Sometimes when he wakes up from a nap but that's it. Is it because he is always with me? He is also more whiny with me and just wants me to hold him a lot of times instead of play. I had my sister babysit him for a few hours a couple weekends ago and when I went to pick him up and he saw me he cried a bit. Why does he hate me I try to do my best but I just feel like a failure. 😭