protagonist and antagonist

I think that the antagonist in this play is Amanda. She seems like she is always pushing her kids around with things she wants them to do. She has no concern for what they want in life. She signs Laura up for college and trys to throw all of these different things at her that clearly are not what she wants. It is sad because Amanda has good intentions but she is going about it all the wrong way. Amanda also does this with Tom. She is constantly fighting with him. Amanda does not agree with what Tom does every night. She doesn't believe that he is actually going to the movies and she thinks he is off doing bad things. At first, I thought Tom was serious about all the sarcastic things he was saying to his mother. It caught me off guard. I think that Amanda is so scared of what Tom is doing because she is afraid that he will do what his father did and leave them.