JURY CASE: I GAVE THE GUY A BJ ON OUR FIRST DATE, WOULD HE RESPECT ME???

Ok I saw this reader's mail on one of the blogs I follow and thought to share with you guys!!! What do you think though and don't tell me it doesn't happen cause it sure does!!!
See the story below!!!

So me and this guy met 3 months ago- Once only.
Then I moved to a different city and he kept texting me constantly.
His texts got sweeter everyday, and we seemed to have a good chemistry. He would usually text first. I wasn't that into him at the time.
But slowly he grew over me and when I returned back to his city, we decided to meet.
Our date started out amazing, I mean exceptionally great chemistry. Here's where it got f*cked up...

We were making out in his car after the date and next thing you know he kissed my neck etc. The first time he tried to get me to go down on him and then I said no and he said its ok.
Then we started making out again...
At this point he asked me , "You are amazing , will you marry me "? After that, I ended up going down on him.

(Guys and their will you marry me lines)
Lol read more below

Yeah I have no idea why I did that. It was pretty aggressive the way he pulled my hair - Sorry for the details but I think these are kinda important to speak of in my situation.
I've been beating myself up for this.

After he went home he texted me goodnight, I did not reply. He texted me again in the morning and I replied after a while , and told him I felt worse about what happened yesterday and that I feel really bad about this.
 So he said don't worry, we just had a great chemistry.

He invited me on another date, I told him I couldn't, he got upset.
I don't know what to do next. Please help.. I do like him but I also think that in my mind I've ruined it.
I feel like he might not treat me respectfully anymore and expect me to repeat what happened the last time.
My question is, was it entirely my fault? If he liked me (as in serious) then wouldn't he have tried not to direct me down, not to unzip his pants?

Lol the questions tho!!! Anyway what do you think?? And yes I am open to reader mails oo!! We all know relationships have too much drama these days... Share with everyone send me a mail isynwegbu@yahoo.com. *kisses*