So this girl I like looks like I can safely say she is taken

I was driving home and saw her she saw me as we made eye contact as I she was with a guy they were standing pretty close they were getting something to eat and walked home together afterwards. I'm not the type to interfere with relationships let alone date a girl who has a boyfriend because I think they are taken for a reason. That being said I pretty much loss nothing I can do about it. Anyways thought I give you guys an update and I'm also lonely.