Ever since they talked about revamping the PvP Battles, I stopped focusing on the girls affection and focused only on increasing my stats. I thin I was around level 50 at the time. Just this morning was I able to accomplish this in the market.    On a simple note...  I was able to almost upgrade every girl to at least three stars by completing the daily missions and Arena quests. So with the low drop rate I ran into after I had about 30 girls has made it possible to ignore affection.