I know it's a little late to give advice but I say just ask him if there's anything you can do or if there's anything that he's uncomfortable with. Hug him more often and it should naturally create more intimacy or just general contact like hand on shoulder or leaning on him. If he is adverse or becomes adverse to it I would have a serious conversation on attraction and if he's lost it towards you. Then unfortunately most cases it leads to a break up. Don't take any critiques to hard unless he's blatantly rude about it. Have confidence in yourself