So two days ago my boyfriend had a dream that he was at a party and he met this girl that he completely fell in love with, he told me he had never met this girl in his entire life and that they did sexual things in the dream. He even told me that i was at the party but he was with this other girl, then she randomly disapeared and he woke up.
After waking up he tried to go back to sleep so that he could keep dreaming but it didnt work out.

I really need help with what this means? Am i suppose to be worried that he had a dream like this about another girl when he claims to love me? or am i completely overreacting?

I feel like im overreacting but i just cant get this dream out of my mind and i would really appreciate some help.

What does this mean?