Over Thinking

Maybe I am over thinking, I honestly hope that is what I am doing. But why does it seem that if I have feelings for someone and they don't share those feelings why does it seem that once they find out how I feel, the friendship gets weird, it doesn't need to be that way. I just want good friendships to stay good, right now I could care less about the relationship aspect of things, frankly I don't even want a relationship right now, I just want friendships to grow especially the ones that are growing strong. Hopefully I am over thinking while I am writing this cause I can't deal with losing friendships or them growing apart!