Am I right?

Okay so this isn't really controversial so I'll delete in a bit. But here's the deal: so my mom has this boyfriend from out of state. She knew him from school, but for the first time, he came to visit. He's staying in our house. He's a nice guy BUT my mom went somewhere and now he's here alone. Just me and him in the house. I feel so awkward that I don't even want to get up to eat because he's in the living room. I'm not comfortable around the dude yet because it's only been 3 days that he's been here. Am I right for feeling so awkward? Btw there's no need to be rude👎🏼 im asking for opinions. Would u feel the same way? Or am I overreacting?