WHat kind of sign is this?

Im in a casual relationship with a guy. we have had sex 4 times. But, i noticed that after the 3rd time, he talks and talks and doesnt go for another round of sex. It is like he wants to talk alot. He has told me that he likes being around me and likes my company. when i say he talks alot, i mean alot. the last time, I got to his place at 3 and by 3:45 we were done having sex, then until 7:45 he talked and talked and i tried to leave but he said he didnt want me to go. But, i just want to have sex and i want more than 1 round of sex when i go see him..i go see him evry other week. But, i didnt mind him talking because having sex with him the 4th time confirmed that i was no longer sexually attracted to him and so i didnt mind his yapping at ythe end. what cud be goign on here?