Is this normal is a friendship between best friends?

My guy friend ( 22 M) and I ( 23 F) have been best-friends for almost 2 years. In the beginning of our friend ship everything was normal in a way, like he didn’t treat me any other way besides treating me like a friend. Recently in the past year, while I was in a relationship with my ex boyfriend , I noticed he would get jealous when I tried to make other guy friends. which to me was normal , who wouldn’t get jealous of there friends making other friends? Right? Anyways then I started noticing that he would call me my love. A month & an half past, I told him how my ex boyfriend cheated on me , etc. Right after I told him that , everything changed between him and I, in a sense that he he would say “ te amo “ , he would also call me love , sweetheart, my girl , etc. Recently I also noticed he told me to tell other guys to F off. I don’t know if any of this is normal in a friendship between a guy and a girl.

Is this normal is a friendship between best friends?
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