What are some ways a relationship can thrive emotionally in the early stages of a long distance romance without physical contact?

We had the exclusivity talk and decided we are not seeing other people. While I was on a girls trip, he spent the entire weekend with his ex and lied to me & was sneaky the entire weekend. I really like him and I am so hurt. What do I do?
Will Trump now claim that because the Constitution limits him to two terms, yet he is seeking a third one, that the Constitution is infringing upon his rights and that it is therefore unconstitutional? Will the Supreme Court support Trump's position?
I don't understand this marriage of a thing. Does two people needs to fall in love before they marry? Or is it just a decision? And again is it because they know that God wants them to marry each other?