My by friend dont remember several things which takes place between us during our intimate moments!!!!!!!?

i fail to understand how my boy fried forgets things whch happened between us during our intimate sessions.... he loves me a lot but then do many such things whch makes me feel that m not an important part of his life..... we spent our anniversary night together n for the first time we had a gr8 time 2gether... this was the first time wen i dressed up in proper and sexy lingerie n wen we discussed the same after 3 days he dont remember the colour n alll. all this annoys me... please give me suggestions............