Guys, What does it mean when he calls you love?

Anonymous
So this guy and I have been talking for a while nothing serious, and he was a little cranky when we were on the phone, everyone has their cranky days so I didn’t really get upset by it, but I texted him because I forgot to remind him about his appointment while we were on the phone, and his response was “okay love and I’m sorry I was snappy” we have never used nick names before so I was caught a little off guard. What does it mean if a guy you are talking to calls you love?
Guys, What does it mean when he calls you love?
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