is quiet long time fro both of you and more than enough to know what would happen. If after 4 years he is still ignoring you and saying nothing about marriage then what do you expect next? Well ...

I did not complete a year yet, but if i got the chance to marry that lady that i love i will marry her now!!! but sigh ... it is really complicated and not that easy at all ...

Breaking up with him is not the solution, asking him clearly after you sit with him what he wants from this relation would be the best. Don't waste your time more than that if he won't be able to answer that question of yours. It is a good and nice thing to help your family, but not to ignore someone who really loves you and stayed with you for four years ...

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Do not dwell in the past, do not dream of the future, concentrate the mind on the present moment. (Gautama Buddha)