Dear Barbie,
yes, you are still in the state of shock, really not so much time has passed. You were lucky your H came back 'early', but on the down side you were not healed yet. It really takes time. Continue all the things to do to get the pictures out of your mind as you said...again and again, it takes time. But the images will fade.
Here is an article that helped me:
http://www.marriagesherpa.com/blog/marriage/affair_images_escape_pain/And for forgiveness, I really find it is like an onion (not sure who wrote that here), there are layers and layers of it, again it takes time to peel one after the other off.
I did the forgiveness challange of Desmond Tutu and found that really great. Main thing is that forgiveness is not even for him, it is necessary mostly for YOU to find peace. You also don't need to start this challange with your H first, you can first work on trying to forgive somebody else for something smaller (or longer ago and not so hurtful), then work on the most painful thing, i.e. your husband's affair. This really helped me.
http://forgivenesschallenge.com/Big hugs Barbie, you can do this! Don't blame yourself now for not being able to 'forgive and forget' quick enough.
It does take time and you will get there.
I don't know exactly your story, but in case your H really is out of MLC, he could really help you. There are different programms on that, some with workbooks, some are weekend retreats.
If your H is still at the end of his fog and not completely stable yet, or if he is just not the type for that, he unfortunately won't be able to do that, to help you.
Your H did not really seem to have bonded so much with OW...you know especially with men there is so much due to just hormones too. Still hurts, but try to see it also as that. Ever seen a bull mount a cow? Or better yet, semen taken from a bull or a stallion. Ow? She's no more than that hideous plastic frame
Well, I try to see it like that on my good days...
Hope these two videos make you laugh and you won't find them offensive:
http://www.youtube.com/watch?v=p7OSm6U0Jbghttp://www.youtube.com/watch?v=J538n44UPmABig hugs,
Lost