All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger.
If reading about marriage incites your desires and lust, and this may lead you to be subjected to the reasons of temptation, then it is more appropriate to fulfill your oath [i.e. not to read about marriage]. Indeed, it is easy to know about marriage and the matters related to it. Rather, you may read about this after getting married.
However, if we presume that you broke your oath, then you are obliged to expiate for breaking your oath; for more benefit in this regard, please refer to Fatwa 87181.
Finally, it should be noted that it is permissible for a woman or her guardian to look for a pious husband for her as we have already clarified in Fataawa 83471 and 87295.
Allaah Knows best.