He’s attracted but not enough to want a relationship?

So there's a guy I met about 5 years while at college together, he showed signs of liking me but online/offline we have followed/unfollowed each other and its a weird sort of magnetic thing like we keep coming back to each other every now and then. I still like him, I even confessed that I had feelings for him at one point but he didn't respond. He got in contact again recently and wanted to see what I look like now, dying to see a photo of me and was asking how I am/how life is etc and wanted to see more. I took that to mean more pics which I said no and he responded that its not what he meant, and he would never ask that of me and I didn't hear from him again. Why did he just want pics, he seems to be attracted enough but never wants to go further even though I feel like he does.
Any thoughts?
He’s attracted but not enough to want a relationship?
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