How can i show a guy i am really in to him just not ready sexually because getting out of a long term relationship?

Spend time With Him: Many relationships move much too quickly to sexual intimacy in my opinion. More time should be spent in spending time together and getting to know each other. This is the only way to find out if a person is right for you and if the guy is truly interested in you as a person then he should be willing to put sexual intimacy off.

Be open: Tell him exactly how you feel and what you want. He is lucky to have your interest, and if he's a good partner he will understand your desire to wait. If you demonstrate openness and honesty, it will give him permission to do the same. Even if your points of view differ, you will likely be able to discuss them effectively in this type of environment.