Big Hearts ? We feel like we are dealing with complicated people

I've made some major adjustments in my life. I believe my attitude and mindset has matured so much and I'm thankful for all the lessons my parents taught me and different books that influenced my life. However, the final struggle is trying to learn not to take everything personally. I have a big big heart and my feelings get hurt easily by others, but I'll never let it show. Well, towards the end of last year I started to become more vocal about things that I didn't like. I use to be the one to be quiet and not say anything, but there comes a time when you have to say "enough is enough." I have a hard time telling people are giving up on people when I need too. I have this heart of giving chances when I was in my teenage years holding a grudge was the thing for me. Sadly, holding grudges was only blocking my blessings because I did not forgive towards the people who hurt me. Good takes care of those who persecute you, and I didn't always have that mindset. Now that I'm getting older and I've been working every day towards my relationship with God that he's made me a lot softer towards a lot of situations. The crazy thing is giving up on people isn't bad, and I'm allowed to walk away if you are always throwing shots. There's only so much one person can take before they act out of character. People have to guard their hearts and always ask God the right choice to make especially in situations that put you in a tight spot with your heart. Sometimes people with big heart expect so much out of people they end up breaking their hearts. We can't hold people to such high expectations because we are human and we will mess up. However, you can't expect people to have the same heart as you. We all love and care differently.