was I too rude?

My boyfriend did something a couple weeks ago that made me question the trust in our relationship so I wanted to restrain from anything sexual and just needed some time to get over it. We're working on it, but last week we got caught up in the moment and had sex for only a couple seconds. He wanted to make love this weekend and I was okay with it at first, but as this week went by I realized that I shouldn't, and didn't want to. 
I told him basically what I wrote here, that we got caught up in the moment and that I was unsure about wanting to do something this weekend, because of what happened. I felt like I got his hopes up, and just ruined it since he thought everything was okay now when it's not... Was I too rude to him?