1: lack of feeling or emotion : IMPASSIVENESS
drug abuse leading to apathy and depression
2: lack of interest or concern : INDIFFERENCE
political apathy
so, groven stated that he is virtually unaffected by the past weeks' games. I guess that could be construed to fall under #1 - "lack of feeling or emotion." However, the preceding clause "I still like BYU football" certainly doesn't support that there is NO feeling or emotion under #1 and certainly doesn't show lack of interest or concern or indifference under #2.