When a guy says he doesn’t feel chemistry what dose it mean?

Anonymous
So I met s guy online 3 weeks a go. We started to chat and find each other attractive. But he lives in another city.
After couple of days of chatting and talking on the phone he told me he wants to come to see me.
I accepted because we had a good connection. And sexually attracted. We already had a phone sex.
We agre to spend a weekend together. And decided to meet at his hotel. Long story short, 10 minuets to our first date we started to make love and he didn’t let me get out of the bed for 3 days.
But after he returned home he sent me an email that he doesn’t think that long distance would work for us because of lack of chemistry!!!
the question is how can you spend 3 days in bed making love with someone without chemistry?
When a guy says he doesn’t feel chemistry what dose it mean?
5 Opinion