I waited too long for her so I blocked her. Do you find this immature?

I talked to this girl for almost two years. I have told her how I felt about her and she kept rejecting me. We still messed around and had a friends with benefits thing going on. I always wrote her letters, sent her flowers, gave her advice and supported her in so many ways. She finally moved away to another city which I frequently visit for work so we would still meet up from time to time. I noticed she was getting more distant. It finally got to the point where it was only me reaching out to her and I only kept hurting myself by seeing her pictures in social media. So I blocked her. It’s been about a month and she just found out. She’s a little upset so do you think it was immature if me?
I waited too long for her so I blocked her. Do you find this immature?
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