The other night I was speaking to this male in his early 30s

The other night I was speaking to this male in his early 30s on an application on my smart phone (online). He lived nearby me and he kept stating things that made him out to be a paedophile. I was quite angry and he said he had illegal content on his computer (re: children). I was in the process of arranging to meet him as I was going to call the police once I knew who he was and had him in my presence. I was obviously making out that I was interested in this. I decided not to bother in the end. The next day I was worried how this may have looked to an external observer. Could I get into any trouble with the law regarding what I said to this man? I must admit I'd usually just ignore someone like this, but I had had a few drinks and I felt something should be done. I never met this person. I'm a very conscientious person and I was a bit daft not realising how this may have made me look. Need some advice, thanks