I do have and had friends and relationships. But I noticed that sometimes I do not care about those ppl after they let me down or played me. As examples: 

•I had a friendship that lasted 10 years, I met this person everyday. At some point we had a little disagreement and after that they didn't contacted me again and I got blocked. It was fine to me, didn't thought about them too much and after a day where I shed a tear about this situation I never cried again or thought about them.

•My first ever relationship wasn't a good one, pretty toxic. They broke up, I cried 3 days and then never again. After a week I was actively dating again

•Had a disagreement with a group of friends. After a few days of thinking about this situation it didn't cross my mind and could gain a new friend group easily.

•My second relationship was pretty intense, I thought about this person as my soulmate. I never in my life had felt such closeness to any person in my life. 4 years in, and after they doing pretty bad stuff that caused the relationship to fail, I had distance myself from this person. One month after this I tend to forget that we used to have such a close relationship, I couldn't care less.

I got diagnosed with generalized anxiety disorder and moderate depression. Is it normal to feel this way about people I used to be so close? I am kind of confused because sometimes I care more, can get sadder and cry really easy about other things, but in regards to people in my life I can feel cold so quick.