I had a small screw up after going in for a kiss but it didn't seem to be a dealbreaker. She rejected the kiss and as she backed off I said "No?" (that was my screw up) and she said she didn't trust me yet so I smiled and brought up something else. So my mistake resulted in the girl setting up a "trust" wall between us, saying that she doesn't trust me. I now know what I should have done after the kiss rejection, but now that's in the past and what's left is a wall.

How do I go about breaking this down? I'm considering what would happen if I act with abundance mentality and take other girls out and the first girl catches wind of it, will it be beneficial or detrimental?

My plan right now is to just wait for awhile without contact and spend time with her in a group setting. Building trust is a difficult issue that I am not sure how to solve besides just spending some time with her.