<human>: **Backstory**

My mom and dad were never really lovey or anything growing up. I saw them argue a lot in middle school/high school and my mom has threatened to leave him many times due to his alcohol problem and his coldness. I'm extremely close to mom. I love my dad but I'm not super close to him.

**NOW**

I'm currently moving and my dad came up to help me pack and move. He got here today, leaves on Sunday. I'm talking to my mom asking her how her day went and we get to the point where we end up talking about how she wants to have someone to "talk to". I bring up emotionally cheating and she says my dad has "someone he talks to."

Apparently this woman is a bartender he meets up with at midnight. He also goes home really early from work all the time. Also his phone is glued to his hip which he never does. After so many years of trying my mom is finally giving up and moving out.

Even if nothing physical has happened I'm still really uncomfortable being around my dad. I don't know what to do in this situation. Do I talk to him? Ignore the situation? I need help moving up and all my friends are busy this weekend. My anxiety is really high and I just don't know what to do.

Can you summarize the given text in a few sentences?
<bot>: Dad is (at least) emotionally cheating on my mom, mom decides it's time to leave. Dad is with me and I don't know how to act. What would be the best way to handle this situation?