What does it mean when guy calls you my dear over texting? And does it mean anything?

Anonymous
This guy and I started talking online, then exchanged numbers two days later. Ever since we've been talking everyday. It's been about almost a month now. I want to meet him and hang out. but due to what's going on with the virus and everything I do not want to risk getting anyone sick. Anyway. He stopped texting me first and I don't know why. Usually he'll text me in the morning. But anyway. So he texted me today and said, hope i'm having a good day and said i am and asked him what he was doing. He was said he was chilling at home. I jokingly said are you social distancing? with a laugh emoji and he just said I am at home by my self with an annoyed emoji... So I don't know he knows what that is or not. But I just told him i was kidding and said have a good night ttyl. And he said you to my dear. So I have no idea what that means... we both kind of like each other, but none of us really confirmed anything and last time i checked he was still active online while texting me the whole time so I don't know.
What does it mean when guy calls you my dear over texting? And does it mean anything?
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