Why are people so mean?

Last night husband and i went out to his aunts to drink, one of my MIL sister in law told me that my MIL would always talk shit about me.

We were hanging out with them because they're around our age..

So anyways she was telling me how my MIL always says i don't do anything for my husband. And honestly dude that hurt me, i had a feeling they said stuff but i wasn't sure.. i know its true because she was telling me how my MIL tells her i don't cook for him or clean for him and things like that. When honestly dude i feel like i do so much for Him land i... i would sell tamales and bust my ass till 3 or 4 am when i was pregnant and even after my csection just so we could have money. I watch my baby all the time while he just plays his xbox

Even now that i make the candles to sell, and when we go out and drink i'm the one who was to wake up and take care of my baby even though i'm also tired. I do everything for him dude, i clean for him. Yea i don't cook everyday but i do, my husband doesn't complain..

And they also said that i was too overprotective with my son and that i don't let them see him. When in reality he stays with them every single time we go out and also they watch him a lot and play with him everyday. They also said that if i ever leave my husband they would try to take my son away from me.. they said more stuff but i hardly remember because i was tipsy and tired when we talked. its so sad and it hurts my heart that they're like that with me when i have done nothing to them

I live with them.

And they've tried to take this chicks kids away as well when they found out she was cheating on my MIL brother

Edit: my husband doesn't work he does online college.. thats why he wasn't working and i would sell tamales.. now im doing a candle buisness so we can have money