I will applaud the FL for her efforts for 10 yrs. Every relationship needs efforts from both sides and sometimes from one side someone has to take the lead to brigde the gap thinking the other side will start to ponder over it. Not everyone can do this but she did. Well it may look stupid to even endure that kind of treatment for all those years but having some hope definitely helps you getting a direction to lead you life.
The trash finance is so inconsistent character, he literally disregards, insults her in front of others and then when she leaves him for good he shows affection for her and goes to pick her up in the middle of night. These kind of characters are just egoistic and they don't care about others, other than their egos.
One thing that I like about the FL is that she is not like other stories indecisive leads. And the plot is also somewhat different from other going back into the past stories. She will live her life by not going to the past and changing it rather making a good future by herself.