I've also heard of the one at Fatima, and the one at Guadalupe, and the one who showed up in a tree trunk in Yonkers. For some reason, they always make it sound like she's traveling solo. If he's always there, why does no one mention the J-man?
I don't know if I'd say He is "always" there. I think it may be that his mother is His ambassador. I can't think of any other way to describe it. I will say this though, she may be "appearing" more than him, but the message is ALWAYS about HIM, about reconcilliation and conversion.
I do know at Christmas time, she has appeared with Jesus and he comes in the form of an infant. There was a miraculous photo taken of this. I saw it and it was breathtaking. There was also a photo taken of her, I wish I knew how to post pictures.
The Catholic Church does not require anybody to believe in apparitions. They are merely gifts from heaven to help us in our faith and bring other's back to it (like me for example).