Advice needed: Should i forgive him for the sixth time?

I just got this in my email from a blog reader. she is seeking for an advice. her message read thus:…Dear mercy,i have been reading your blog ,especially the relationship aspect of it and everything i read and put it in practice have always helped me, but i can't swallow this. see my story:

I have been dating my boyfriend for about a year plus now…. he told me to please contend him on his weak point…that is "weakness in women". he have cheated me for almost six times but i find myself always accepting him back. the most painful thing in the relationship is that he cant take decision on what he wants. he always please other girls; want to be in peace with all and he keep hurting me.

he talks to me anyhow, compare me with other girls, but whenever we have quarrel and i tries to break up or if i break up he would be chasing me up Nd down …pleading with me he still want me in his life… and we broke up some months ago… and here he is again pleading with  me to give him a last chance….and the mum have been calling me to forgive.what do you think of him please or should i forgive since his mum is involve?

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