Someone asked Rav Aviner if he can continue learning, "bchavrusa", with his friend, as his friend, who is a good person with fine character traits and is learned, goes up to Har Habayit.

Rav Aviner responded that one should break off the learning partnership. He said you can continue being friends, doing things and doing mitzvos together, but not to learn together - learning Torah is the basis for the proper outlook and approach to life, and clearly this person has something messed up in him.

However, one need not cancel a shidduch that was arranged with a person who goes up to Har Habayit. Rav Aviner explains that nobody is perfect and we are judged by the majority of our actions, as we all have benefits and detriments. Torah is Godly and must be exact and we cannot allow distorted views in, but for a shidduch it is ok as none of us are perfect.
source: Srugim

interesting