Am i the only one

I get autofilled as supp i play supp. Next one i choose top or jungle...someone leave in selection screen...it happenes again and again 3 times in a row. 4th time i get supp again...Is this autofill takeing in consideration that i didnt play my role or just takes the number of games that u attemt to enter? im sick of trying to play my role and gettin autofilled every game...