My ex calls me by my first name a lot...what does it mean?

so my ex and I were together for awhile and we were in love...i still love him and get hints from him sometimes that he loves me too, but he says right now he can't handle a girlfriend. we went through a lot together (his crazy mom, a miscarriage and some made-up fake rumors about the two of us) anyway..when we text each other once and awhile he will always call me by my first name...like he will say 'goodnight and sleep tight ******' what does this mean?
My ex calls me by my first name a lot...what does it mean?
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