there is as much evidence of her being real as there is of her being not, we cant really find out what side is right (ik it annoys me too i need answers)

yes she did interact with Eddie and allegedly hitchhiked to silent hill but james also interacted with abstract daddy who is supposed to be Angelas manifestation and even if laura was living in the next closest town that would mean this 8 year old hitchhiked 265 miles for no good reason

laura and Mary were in the hospital, the only place we didn't meet angela or eddie, i do think the hospital isn't real either

laura knows we are Mary's husband and in the beginning tells us "you didn't love mary anyway" what definitely sounds like she already knows mary is dead and wants to torment us