When you think of something you want to tell her, just write it in there like you’re telling her, and then move on with your day

That is a very good idea.  I will start writing down things i want to share with her.  Hopefully that helps.  I know for I while I was keeping a journal (still have it) on my phone.  When i was having thoughts i would write her letters or notes and that way I felt like i was able to express myself.

I actually did that when she need a “break” before we broke up.  I wish I would of shared with her after the break, so she would of known my thoughts and feelings.  Instead I acted like all was good when it wasn’t.  I was just happy to have her back, even thought it was only a month after that that she left me.