For example, what would you do if you saw a man/woman whom you are interested in started to “like a pornographic page”?

Simple: Keep your distance (for now).

People “may or may not” change with time.

Don’t judge them but pray for their repentance instead.

At the end of the day, it’s between them and God; we’re not called to judge them any more than we are to judge ourselves equally too.

Remember, many of us were such in ‘our past’ too but we don’t live there anymore after repentance.

P/S:

God Will reveal a person to you sometimes immediately or sometimes in time if you walk according to His Will.

Thus the moments when we make our ‘bad judgments’ are when we ourselves are “not” walking according to His Will (indulgence in sin etc; root cause of ‘spiritual blindness’).