We don't know what this means

My friend has been talking to a guy for almost 2 years now, they've never met because they live in 2 different cities. A few weeks ago he was a bit off with her. She then lashed out at him and they stopped talking for a bit. Then he popped up recently and they started talking again. They were just having a jokey conversation and he said "Well that's why I love you." I think he was just saying it like a jokey friendly love way if you get me but my friend thinks it could be more. She kinda wants it to be more. They also both agreed with each other that they would've had sex if they lived closer to each other. So what do you think that saying meant?

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