Everyone has right to be happy. Some of people just wearing mask of smile, swallowed of sadness to keep others cheerful. Love is about sacrifice, give and set free. Demand it's not called love, but selfishness. When you said, "I love you" make sure, you ready to struggle for anything. Even you set free, if your lover appropriate, she/he will never leave you though a second. 

Try our best, let God determine for our lives.