Jackie in all honesty, i think you did the right thing asking him to leave, you wasn't comfortable, so clearly the relationship was not going to be - so time to go. You have done nothing wrong.
However, i do agree with the posters who have said that you need to get over the abusive relationship before you start dating again. Not all men are abusive and trying to get you into bed. Some men, on being asked up for coffee would assume that some sort of hanky panky might MIGHT take place. Some, not all, and even the some that do, it doesn't make them bad if they mis-read the queues, so long as they don't push it. Maybe this guy was just bad at reading the situation, maybe he was a bit socially inadequate and didn't handle the situation well, maybe when it came to it, you thought, ewww, no, im not wanting this, and asked him to leave, he left - he didn't push it any further. He is not the guy for you, and you are certainly not ready for this sort of relationship yet, but i don't think he was one of the bad guys. Please don't be scared.
Thing is, the way i see it, if you didn't want to get it on, by that stage - he wasn't the one for you anyway - i know that sounds trite but sexual attraction is a pretty strong thing, i wanted to jump DPs bones the first time we met and probably would have if i wasn't on my period
So if I had offered him in for coffee, then it absolutely would have meant more, because i felt a very strong sexual attraction. The fact that you didn't want any of that tells me that actually, you weren't that into him? I could be way off on tht one and judging by my own standards but if there is no attraction then why bother?