I know I'm up for flaming here (thus the namechange), but I'll tell the background.
I have a good friend, we've been very close for about 8 years. For the first year he fancied me terribly but I didn't fancy him. He then got a girlfriend for a few years, then they broke up. We had a few snogs but nothing more - I wasn't all that interested then. He got another girlfriend and has been seeing her for several years. They live together.
We are still very close. We text almost daily, and have done for years. We visit each other and stay over in each other's beds (although nothing happens, although he used to fondle my hair sometimes if we were a bit pissed). We go out just with each other, rarely with her as well. If she does come out it's a very different night, and then she goes to bed while we stay up and giggle for hours. Pretty much everyone who knows us thinks we should be together and "would put money on it"- including the three different groups of strangers we met on a night out last Friday. At the end of the night we were pissed and walking down the street holding hands. There were one or two moments where I pulled away because I thought we might kiss. We went out for after work drinks again yesterday and do weekly.
I'm starting to realise that I actually really do fancy him after all.
I just think he needs to get his head sorted because if I was his girlfriend I wouldn't want him to treat another woman like he does me. It's not right. I can see that. He doesn't know that I've changed my mind. It's never been on the agenda - just good friends, although clearly a bit closer than it should be.
What do I do?