Does it ever get better?

DDday was 10 days ago. I spent the first night out of the house and in a hotel, I went back home to talk to him later that day. He truly and genuinely seems sorry and sincere about it. He said his affair was never physical, and he’s sworn by it since then. Even the message his AP sent me didn’t mention anything physical. He swears it was only when we were fighting and it was solely for attention and porn, basically. We’ve started therapy. He signed up for therapy before the cheating came out “to be better for our family” and he’s been attending. He even began attending Sex Addicts Anonymous meetings due to the fact he was subscribing to OF pages and sending money to various other girls (there was no communication with them other than this). Our relationship has been as back to “normal” as it can be, I miss him when we’re fighting. I just want to know, if we reconcile will I ever get over the flashbacks? The random waves of anger that come literally out of nowhere? I know trust will never be 100% again, but I don’t want to be angry forever. Positive answers only please, as I know staying in this relationship is probably stupid of me.