My Cat Is Acting Weird

[Churchakiin]

Hello. I need assistance with how my cat is acting.

Around 2 months ago, one of our neighbours moved out. They had a cat which everynight came over to our place and hassled our cat through the window. When they moved out, our cat started to get really cuddly. He would come over almost every 10 minutes for a cuddle or pet or scratches.

A few weeks ago, my mother and I went out for a night. We left on a saturday morning, returned on a sunday evening. During this time, our cat was home alone which normally doesnt bother him. But also during this time, there was a large storm. Now he constantly meows when one of us walks out the door to hang up laundry, go check the mail, go to shop or what ever. He even meows when we are around.

Please help someone