Dreamt that a lust demon spawned in my apartment and tried to make cheat on my girlfriend

I dreamt that I was in my home, and suddenly a woman spawned naked and had all the physical attributes I find a 10/10 in a girl, jumped and made me catch her to show how light she was (because girls you can easily carry is also part of my dream girl physique) and tried to convince to cheat on my gf, saying how it is perfectly ok. I just kept saying no no no I can’t and don’t want to do this while I felt every atom of my body wanting to have sex with her. I ended up touching her breast and altough physically it felt good I felt so horrible I just let go of her and forced myself to wake up. When I woke up I also had a massive erection. I don’t know if I am a good guy or bad guy in this dream and don’t what to think of it. I love my girlfriend and would never cheat on her.