I hope you two do well. People are different. He's probably not entirely like me.
Don't expect him to "get over it" because I think there are rewiring changes that happen as big as the difference between prepuberty and post puberty. It's been a long time and I rarely talk about it. For myself I do my best to be good to people. One can learn to understand what is going on I think. I have. There are benefits - faster reaction time, the ability to respond to sudden events, waking up if a pin drops that I don't know what it is. A couple years ago I interrupted a kidnap attempt of a woman who was very grateful. I just saw that predator's targeted efficiency and I knew - bang. He did get away unfortunately. Also, for me, with cultivation, a greater perceptiveness about people.
There are drawbacks. For me, those are nightmares, lots of trouble sleeping, hypervigilant paranoid thinking about possible threats often in the wee hours of the morning, sometimes difficulty concentrating. I also get more anxious and worried when things are at their most peaceful, I am not always soothed by quiet places. Falling asleep when I feel safe, which can be at inopportune times and places. The hardest thing probably is a complete inability to trust in relationships, including with women. Not everyone can, but that doesn't mean I can't be good to my gal. We do our best. Bicycling a lot works for me, and hiking. I'm more relaxed on the move than standing still. More relaxed traveling than being in one place. My symptoms didn't really come on full force until quite a while after I was home for good and back in grad school. Can't stop them. Have learned to live with the new me.
He'll be unique though. Not me. The general wiring is probably similar. What he does with it is going to be different.