Boyfriend and his girl (best) friend

Rae

Can someone just help me and tell me it's normal that my boyfriend has a girl friend (has boyfriend ) who he used to be good friends with and known for long doesn't have feelings for her. Am I crazy for feeling like this when he kep a back up photos with pictures of them together, tell her how much he miss her when he looks at them, calls her pretty, cute and stuff, hid favourite person wanting to call her to hear her voice is normal. Even when we dated he said all of these stuff.

For me there is a line between friends and one sided feeling and all of this makes me question the way how he view it. I would never do the same with a male friend that's the boundary for me.

I remember the way how he talked about her, telling me random things about her such as where she lives, or wanting to give a heart frame picture of them together or drawing with best friend forever as birthday present even though they aren't even close as they were before.

I'm already insecure because of his actions he did in the past of our relationship .I feel sick in my stomach from all of this.