1. In certain circumstances, I believe in second chances. It all depends on the situation and the people involved. I was once very forgiving, so much that I was self sacrificing to make things work. I ended up hating that other person for taking so much out of me and myself for giving too willingly. I think that in any relationship, friendship, etc., people need to give and take equally. If not, resentment and unhealthy habits arise, making it hard to define what works and what doesn’t. Especially when people lust/love/care about each other. Our judgement can become cloudy, making it hard to know the worth of ourselves or others. Know your boundaries, how you deserve to be treated/treat others and gauge the willingness of all parties to move forward in a positive way. Everyone needs to be on the same page.
2. As far as feelings changing, yes. I find my emotions shifting constantly, and though feelings are valid, they are not always concrete. The way I lust after someone today could totally disappear within a week. Living is learning and evolving our own train of thought as time passes. Change is inevitable and can happen unexpectedly or by choice. It can be negative or positive, but it’s what you do with it that makes it worth something.