I used to feel so guilty about my first cat Jasper. I had him for 3 years. He was found as a kitten that hopped a ride in the engine of a truck, and he adopted me at work. He was my first and I wasn't very knowledgable about indoor cats, so once he got old enough I started letting him outside when I was home. He came back at night when I called him....95% of the time. The other 4.9% he was sitting on the front porch in the morning, waiting to be fed. One day I let him out and he didn't come back that night. He wasn't there the next morning. I was getting ready to move and was worried because I had a home lined up for him (I was moving from Guam to Maryland and couldn't take him). I came home that afternoon during lunch...still no Jasper.
I combed the neighborhood for the next 4 days, every day. No Japser. The day before I was supposed to fly out, my land lady comes over and tells me Jasper is dead. She saw him on the side of the road, but by the time I got there someone had already cleaned him up, so I was never really sure.
I felt so guilty. If it was him, it was my fault for letting him out. If it wasn't him, maybe he came back home and I wasn't there. I went through this for weeks.
One night, I had a dream I was in a strange place and Jasper came up and head butted me, purred his little heart out while I petted him, and walked away towards the woods. But before he left, he looked over at me, gave me his "mommy meow" and flicked his tail....and just disappeared.
It was very vivid and I remember every detail 6 years later. I truly believe that he was telling me he was happy and didn't blame me at all. Just like I believe Mr Jinx is telling you the same thing.
Sorry, I didn't mean to write a novel. But I think dreams like that DO mean something and you should take comfort in what the dream is telling you.