What does it mean when your guy friend of 11 years is being nice to you?

We been friends for 11 years back in 2015 he had confessed that he had feelings for me we never really had a serious a conversation about that. Years go by we kind of stopped talking, then last year I had went to go visit one of my female friends and well I thought it was just going to be me and her but she invited him to hangout with us that night I felt a lot of attraction it was intense as well between the two of us flirting and joking around with me. Then we hung out again back in February of this year he had paid for my food and parking spot when we went out the beach with my female friend he was helping me out with my luggage was also helping me with carrying grocery bags where we had snacks, the we hung out again in March he helped me park my car. Then two weeks ago he messaged me I replied back to him but he left me on read.

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He also had asked me if I want it to take a picture with him the same day he was was being nice and helping me out a lot he was sitting down and I was going to be standing up next to him so kind of like hugging me and we never hugged before. Why was he doing all of this.
What does it mean when your guy friend of 11 years is being nice to you?
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