Kim,
Yup...that's it exactly...that ambiguity between wanting to remember as much as we can, yet it being so painful to do that remembering. That's just the phase you're in and that's all there is to it, really. As you said, nothing to do but ride it out, and accept it for what it's being right now.
But there
is something about being in extreme pain, I think, that naturally makes us remember more, or remember more acutey and fully, as once we've healed more later on, the memories we have of our loved ones just
aren't as all-consuming, as we begin to fill our lives more with the components that are part of our 'new normal'. So while of COURSE we never forget about all the memories ( both good and bad ), they just don't make up the majority of our days anymore...... and by the time this happens, we can handle even THAT, as part of the journey. I know that right now this may even sound like a hideous idea ( if you know what I mean ) and yet that's what grief evolves into after we've worked through enough of it to honestly begin to reclaim our lives. This is probably why it seems like a 'dishonour' to our loved one's memory and why we feel the need to stay in the painful parts for so long. At least, that's how it seems to me. If it helps with this concept, those anniversaries, holidays and other important dates....almost always, with most people, remain huge triggers.....so if you ever start feeling guilty about NOT being triggered as much later on.....you still have those special dates to return to the pain in as much intensity as you desire.

I think though, that most of us finally reach a point somehow where we're so tired of hurting so badly that that then gives us a turning-point from which our grief can evolve into more healing.
But for now, wherever you are, however you are, it's
acceptable. That's where you need to be or choose to be...whatever, it doesn't even matter which it is. It's okay to be there, even if it's a love-hate thing. One day, at your own pace, you'll move beyond that and while it will have changed you, you'll still love Sasha just as much, without it killing you to feel that love.