Welcome, Runner. There is a sadness in your post that I can relate to, even though I am not single. But I am married to someone I don't love anymore, but this is not a legitimate enough reason for me to divorce. So I too, in obedience to God, feel sad that I cannot be with someone I love. It's a lonely feeling, and a guilty one as well. My husband is not a bad guy by any means, which makes me feel worse about it.
On another note, I have an old friend who lives in Singapore, who is also feeling lonely and confused. He is 46, though, I am assuming you are much younger?
Peace to you and again, welcome.