2yo Toy Poodle suddenly doesnt want to sleep in his kennel at night
 

Hi everyone! I have a 2yo male toy poodle and recently i have been having some issues with him sleeping in his kennel at night. To start, my dog was always fine sleeping on his own even when he was a puppy. He would gladly go back to his kennel when we told him to go to sleep, and sometimes he would even go back on his own when its time to sleep.

But recently, for about 5 days already, he is not willing to sleep alone in his kennel at night and when we bring him back to sleep, after around 5/10 mins, my dog will start to cry and whine on-and-off for almost 1.5hours. We would just ignore him as we did not want to form a bad habit for him to cry and whine so as to get our attention. But it has already been quite long and it is quite worrying. Should i continue to ignore him or make some changes, as i was thinking to shift his kennel into my room instead. Thanks!