Do guys expect girls to make first move? How does a girl know what he wants?

So i have a guy best friend. Over the last year, after his divorce, we have gotten really close. A year ago, i told him i didn't want a relationship with anyone, he said anything between him and i would never happen. But now i am wishing that it would. he's always been popular with ladies, and while he admits he was a player before his last marriage, he swears he has changed and grown since then. But now he spends 3 or 4 nights a week at my place on the couch. We talk and text throughout the day every day. Often wrestle around and spend a lot of time together, but never had sex. He shocked me when he kissed me once, and i wanted more but he literally ran away. He was very drunk, and since he never mentioned it i assume he doesn't remember. Sometimes he makes comments about wanting a girlfriend, but never makes any move. He also jokingly has started calling me slut or dirty girl... which we both laugh at cuz he knows i haven't slept with anyone for 7 years... and he gets extremely defensive/protective of me if anyone shows sligjtest sign of any disrespect. So its weird but i know it isn't ill intentioned so doesn't bother me but makes me wonder if he isn't wishing i would be like that to him. I offered he sleep in the bed with me when he stays over but he insists on the couch. I dont want to scare him off or make him feel pressured by asking but i am so confused on if he is happy being friends or wants more cuz it seems to me like the latter but he doesn't make a move. he's a very confident and outgoing guy so i doubt he's scared or nervous. But why all the flirting and spending time with me if not interested? I do want things to move forward but if its not like that i dont want to ruin our friendship. Any advice?

Do guys expect girls to make first move? How does a girl know what he wants?
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