I could have written your post too, except I haven't yet expressed any negative feelings, but I think it's important to do so, I see it as standing up for ourselves and also that is the sometimes the only way to get a shared understanding and be close to someone, with hindsight there are many things that I would have said to friends and family over the years to give them feedback that things they did weren't very nice and hurt me, but I didn't stand up for myself or trust them enough to state my views.