We dated a long time ago, he was very affectionate. We went apart for 13 years and he was with someone else. That relationship was toxic and now we are back together. I tell him I love him all time and he tells me same but there’s no hugs, kisses, there is sex but it isn’t intimate, doesn’t feel like love. I know he’s been hurt, so how do I get the old affection back.

You don't. It is something he needs to do and if he's not doing it, then you will just continue the way you are now.

Sorry, but its hard to love when you are hurting. He has to stop hurting. You sound like a rebound so let me ask how long ago did he get out of the toxic relationship, how old are you both?13 years can change a person a lot.