ah. i don't believe in pain as the ultimate outcome in love.
perhaps one may feel hurt and get disillusioned and all that in the process of discovering for oneself the meaning of love..but the ultimate outcome will be one of how-shall-i-put-it.... of a deeper understanding in this topic, the awareness of the weaknesses of oneself and an acknowledgement that the other person exists as an individual being who has his/her own ideas and beliefs.
never hurt.
perhaps some may argue...but trust me. probe deeper into how you really feel and you will see what i mean.