Is my cousin trying to contact me?

Okay, sorry in advance for this being so long! So, my cousin/bestfriend ped away Feb. 22, 2010. He committed suicide in his bedroom. During his funeral we recieved a ton of flowers. My gma took one single rose home with her from the funeral. It has been a little over the year and the single rose has turned into a bush of roses and kept blooming in 18 degree weather all winter. He was closest to my gma, my mother, and me. On Feb, 23, 2011, a day and a year after his death, his AIM status changed to "dancing around the room" with a picture of sleeping beauty next to it... No one would know his AIM pword, let alone log onto it for any reason. The same day, the lady that lives below my aunts apt (where my cousin died) said she heard a boy laughing and furniture moving around - my cousin was gay and LOVED to dance around and sing. Not only that, in my bedroom I have a picture of him and I in a picture frame next to his ashes in a vase. Atleast once a week the picture will just randomly fall off the dresser. And last but not least, after my cousins funeral over a year ago, my mom was praying (she is religious unlike me) for a sign that my cousin is okay. In the bathroom in her room, there are 3 different light fixtures, and only one of them turned on right after she prayed and stayed on all night. I dont know if this is him giving signs to all 3 of us that he is okay, because I know he was VERY depressed and upset when he killed himself. Or if he hasnt ped on yet, and he is still lingering. Its just odd because most of these signs are happening exactly a year after he ped...