How do you get the reader to connect to your work? You make them feel involved. Sure, right, but how? One thing they must do is be involved in the story and one way you can get them involved is by not with-holding what is going on in the character. The character is constantly being affected by what is happening in each scene. He’s changing. OR he should be. If he’s not maybe something is wrong in your scene.
All these changes can be small ones that occur when he encounters something, well, small. He needs his new girlfriend to tell him why she’s been cold lately. They talk. She doesn’t tell him anything but that coldness increases, the room temperature drops another few degrees. So he finds out nothing directly but he is affected, he does change, and the reader should go through that with him.
I’m not saying inner dialogue here or tell us everything he’s thinking. The selection of detail still goes on obviously, but writer’s need to communicate their characters' little changes and these make the reader and characters closer and help create that connection every writer hopes for.