Being in between my mom and the father of my child. Anyone else?

I'm so sick and tired of being stuck between them two! They are always talking shit about each other yet they never say it to each other. They always rant about each other to me. And its always the same thing. My SO always complains that she's always being noisy and how I'm a mommas girl and my mom is always complaining how she doesn't like how he is or how he treats me. (Which he does things that seem wrong but are not) im just so sick of it all!!! I feel like I have to chose sides!! Please is anyone in the same shoes and how do u handle it?

Thank you.