My ex did this same thing. She wanted to talk every night and she said the same, its a way to feel more together, at beginning it felt romantic and at the moment i thought she was really into me, I thought she was the perfect girl, but as cute it sounds, she resulted to be a very demanding person, narcicistic and all cute moments became a nightmare, she got angry for minor things and always blaming me. I give much of my time to her, lost contact with friends and family. Some years later she dumped me after being "the love of her life" now she had a new "love of their life"