I think I finally found a donor but

I think his letter made me so emotional it made me want to know him. To know it’s true. To know how sweet he was wasn’t just something he said. Is that a bad thing? He didn’t write the letter for me but for MY child and made it clear. Talked about how the world can be cruel but their family will keep them safe. It was so beautiful. I’m confused about how I feel. Am I picking the right person or should it be someone who didn’t effect me as much?