Yeah I hate Valentines day too. Contrived "Holidays" so people will spend money. We should be loving and kind (when warranted) all year. I
do 
St. Paddys day, April Fools & Halloween though.
I should forgive, it hurts me, not her. The whole anger, resentment, complaining, wasted time.
Dark Heart - sorry about the loss of your mom. Makes me feel guilty about how I feel about my mom, but the rest of the feelings are still there too.
I lost my first son, and for three years (before I had my daughter) Mothers Day was hell. All self pity though, isn't it? (Talking about me, pathetic).
Forgiveness, peace, letting go - makes sense. If I don't I'll just up bitter too.