You are in a grown person relationship. You don't have to play games. This is where communicating what you are going through is the right move. It shows respect for her and she will feel that. A real relationship isn't about manipulating the other person, it's about building something together, which means both are involved in solutions to hurdles that come up.
I've been bad about bottling up my feelings on some things because I didn't want to burden my wife or put extra stress on her. Lately went through something and decided to just be totally open and it has been great. She helped me a lot and it has drawn us even closer.