This world really does have all intention of swallowing us whole, but we can't let it. We all must fight for our happiness, the freedom to pursue things that make us happy to be alive. One of the best things about being on this earth is that even if it comes with its share of burdens both large and small, all we can do is either attempt to walk forward with such burdens are cast them aside because being buried under them is just not an option. Our struggles may help shape us but they do not define us. Never give up.
There are indeed two sides to every emotion. If you reward your lovers positive attitude with gratitude, they will present that same feeling again to you (and if they don't they are definitely not the *one*). Showing others who one really is without exaggeration or deception is paramount in any good relationship.
People like this will slowly drain you of the energy it takes to make a relationship work, (and lord knows it takes a lot of time and effort to make them work) its just not possible for a relationship to be in a good place if the significant other is constantly draining you with issues and constant complaints, fact is this type of lover won't stop until you and the relationship have completely run dry. Never give people permission to suck you dry, make it known that such actions are unacceptable and you will not stand for it.
Who couldn't use a well placed compliment? Compliments often make your partner feel good and everyone loves to feel good, plus it shows that you care (caring is a good thing!). Keep it genuine and never be afraid to speak from the heart. Love is a genuine compliment.