Re: Is it a right decision taken…
It is indeed the right decision…albeit a really hard one but right. Any further contact with him would hurt both of you..making your lives further miserable… 
They say time is the best healer…
It must be so frustrating …but a marriage without the consent of the parent is a no-no… I’m glad you took the rationale way..you kept your distance. Make dua now…trust in Allah…He knows the ‘why’ of every question that you will have in your mind…He knows what you’re going through. And you’re not alone. The guy you love is facing the exact same dilemma by himself…praying to Allah to soften his mom’s heart towards you.
I know of a similar case as yours except that … the two worked in the same office…romance bloomed…the guy asked his mom to ask the girl’s hand in marriage…and the mom disapproved of the union after visiting the girl’s place… and from all the reasons she gave…seriously they were LAME…the guy’s mom just didn’t approve of ‘the family’…however didn’t have a problem with the girl!! WTH!!
Now…guy and the girl still work in the same office..and well…are in pain!
And…a marriage should have your approval too…you can’t just be set up in a rishta that you disapprove of… as others have said…please do talk to your parents. Don’t compromise on this! Best wishes… 