Answer by
thexgreyxwarden (22)
Soak the place where the handle attaches to the stem with Liquid Wrench or equivelent. Soak for a couple of hours, reapplying every half hour.
If that doesn't work, there are special pullers available. You might be able to rent one. They are under $20 to purchase a cheapy one. You don't need a top quality one like a pro.