Shawn, Wedding, and Cancer

Sorry for the complete vagueness of this post.
I dreamed that someone took me to a bunch of old abandoned buildings that I wanted to explore and take pictures of, but there was a guy there named Shawn or something who didn't want people there taking pictures and stuff. He was also big on healthy foods and working out and things like that. He kept running me off every time until a group of people looking to do something worse (can't remember what) showed up. We joined together to get rid of them.
I don't remember if it was Shawn or if it was a completely different dream, but the next thing I knew I was suddenly getting married. I wanted my mom to be at my wedding, but when I tried to call her my ex answered, so my soon to be husband and I went looking for her. I remember turning a corner and seeing a group of people. I asked them if they had seen a short woman with brown hair, and they pointed to someone coming around the corner. When the person came around the corner, I saw that it was actually my childhood friend (who is also short but has black hair) and not my mother. We eventually ran out of time and had to return to the church and proceed with the wedding. My mother wasn't there, but my childhood friend was.
In my final dream, Jimmy and I found out that he had cancer, and he was super depressed. We tried to have a party for him to make him feel a little happier, but he hid somewhere. I spent most of the dream trying to find him. Finally, I looked in a sort of mini closet/crawlspace that I knew he liked to hide in, but he wasn't there. When I turned around, he was behind me and smiling, trying to be positive, I guess. There were cars somewhere in this dream too.