Did I ruin my chances by coming on too strong?

Hey, so I had a drunken "one night stand" with an acquaintance a while ago. I never got his number but he got mine and made sure I had it the next day. I told him it was fun and we should do it again, he agreed. I then proceeded to ask him out on various dates there on after for a few weeks (about twice a week). He always responded that he "couldn't because he had to work". Finally, as a last effort (well aware I was probably already coming on too strong) I said, "do you want to hang out after work?" And he said "sure," that he is "free the next week on Monday." Then on Sunday he texted me with random questions and we had a nice conversation about ourselves ("What job would you do if you could have any?" "Do you like to travel?"etc...he asked me these kind of questions randomly). It was a solid convo, and I took his initiative as him being interested. So, on Monday we met at a bar, had a beer, and yes to my own suggestion went back to my place. In essence, we hooked up and he slept over. We had good sex, and he was really cuddly. He left the next morning saying "I'll see you tonight, right?" (since I invited him out with a few of my friends the day before he was confirming on his own initiative). Then, that day I texted him to confirm "he made it home okay (he lived far and was busing)", and he didn't respond. Then that evening I texted him the place and time of our evening event and he responded he "was too tired but have fun!", I then said "Well I should be home before too late, do you just want to come over and chill and watch a movie?" He didn't respond so after a few minutes I said "well, If I don't see you before I leave for vacation tomorrow have a good holiday!". Once again, hours later, he didn't respond. In my desperate craziness that night I proceeded to send the death texts of all death texts, "I've been thinking...how do you feel about turning this thing we've been doing into an actual "date" type situation starting fresh with dinner after we get back from break? Last night was awesome but Id like to get to know you beyond the bed sheets :P" He, OF COURSE, didn't respond, and I knew I made a mistake. Did I ruin my chances of this growing into a potential real relationship by being "creepy/clingy"? If I just don't text him or call him (assuming he never responds to this last text) will I be redeemed somehow in his eyes? We still work together so I will see him a lot starting next month...and while I won't act awkward I don't want him to feel uncomfortable. I am a very straight forward person because I hate playing "dating games" but I'm also aware that might be why I'm still single...any advice?
Did I ruin my chances by coming on too strong?
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