What is going on in his head?

So there is this guy. I have known him for a little over a year through work and we have become really close. I never thought about him other then a friend but the last couple of weeks something has changed and I have completely fallen for him. He has issues and I have issues like everyone does but right now I'm in a place where I don't know how to move forward with him. It's almost like there are two different versions of him. There is the first one and we tell each other everything. He is always telling me how I am the only person he feels ok being himself around and he tells me everything. We are constantly flirting and he always tells me how pretty I am. He tickles and hugs me, texts me everyday everyone at work thinks we have a thing and once he mentioned I wasn't friend zoned. He always jokes about making out and getting married and is winking at me. After I realized my feelings I told him and he told me he liked me too but he has never made a move. never even so much as tried to hang out, though he did help me with some car stuff for a couple hours one day. But he seems to have no desire to move things forward despite how amazing he tells me i am. Then the second one. He has had some issues in the past with male friends and being accepted. He seems to get along with women better. He ended up making friends with this new guy at work and developed some type of man crush on him. At first I just thought he was a little bicurious. He kept talking about how he wanted to see what it was like being with a man and I figured that was normal. I've been curious too. I figured it would run its course. The kid is straight and lives with his girlfriend so no way anything would happen there. But it is like he is obsessed with the kid. He thinks he is the greatest thing in the world. He stopped wanting to hook up with him because the guy meant to much to him. It's like he is in love. All he ever talks about is this kid and I'm starting to wonder if maybe I'm barking up the wrong tree. But he is in his late twenties. He would know if he was gay by now right? I feel like he doesn't appreciate my friendship as much as he does the other kid because I'm not a man and he wants that male friendship. I've told him this but he doesn't seem to grasp it. I'm the one who is there for him when this kid is a butthead. I did go on a few dates with his brother, and he is busy taking care of his mom, and he does have a history of sexual abuse from when he was young. I'm sure all the pieces fit together but I can't figure out what to do. Do I make a move? Do I give him time to work through all his problems and just be there the best it can? Do I give up all together? Is it possible he is gay but doesn't know it or hasn't come to terms with it? Someone help!

He is showing signs of being gay. Why take a chance? If you have a serious commitment with him and then end up finding he is Gay , how much of suffering you will have to undergo? There are Gay men who have realized it only after the age of 40 and that too after having a marriage with kids grown up. All the while the sex in marriage has been bad. Wives unable to pinpoint what is wrong, end up blaming their appearance that is not able to turn them on. Wives undergo self esteem issues, lots of hurt due to constant rejection etc. If your instinct tells you he could be Gay....99% your instinct is always right. So I would go by it.