“I’ve been on 3 dates w/ this guy i really like. I don’t Know where it’s going. wer asdfadsf ”

I've been on 3 dates w/ this guy i really like. I don't Know where it's going. were just enjoying each others company. We haven't discussed previous relationships -but I was married before w/ them for 5 years. I feel like I'm being dishonest not saying anything. He's a great guy & I don't want to scare him away by telling him. -Advice please! How Should I approach it or when should I tell him??