I need legal advice about work discrimination!!?

Sorry if it's a little confusing! I work at a Subway restaurant and 2 of my managers are mother and daughter and the highest manager is a friend of that daughter. The manager who is a mother also has another daughter and a nephew working there. They have decided they do not like me anymore so anytime my husband comes in for supper while I am working with the youngest daughter she texts the manager (the highest is the owners daughter) and she calls and says he has to leave even though he is a paying customer and I am not even talking to him. But the youngest gets to have her boyfriend come in and visit and she gives him free food as she did last night when I stopped in with my husband and got some water. She texted the manager who said I was keeping another employee from working because I said hi to her and so the manager called and told her to kick us out. I work there and got kicked out for saying hi to a friend yet then as I left the boyfriend of the worker who told the manager to kick me out came in and she gave him free food as he sat there all night till she closed. That is not fair nor right in any way!! Please help me!