You can tell someone that you love them all you want and it won't mean anything. You can't just tell someone with words. You need to make those words come alive in the actions you do. Saying "I love you," then touching, wanting, or using someone elses body just proves yourself wrong. If you use those lips to confess your love but them use the same ones to suck faces with another... consider yourself a liar. The possibilities are endless, do I need to go on?
If you tell someone your love, and show them, but don't tell them everything and hide things from them, you don't love them. If you don't have the decency to let them love every piece of you, including the negitive things you think about yourself, then they should'nt love you. It sucks never knowing whats going on about a person, and just having to be okay with the things going on with them without knowing if its going to kill them or not. Secrets don't make friends, and Secrets dont make love.
If somebody tells you that they love you, you reply "I love you too." If you reply "Me too," they deserve to be able to walk out on you. You're literally saying "I love me too." And people who say that deserve to be shot in my opinion.
If you tell someone you love them just to get something from them, its not love. To use your words to get money, food sex, drugs, or physical labor, then it's not love.
To tell someone you love them, you have to mean it. You have to say it from the heart and it needs to be true. Act upon your love, be honest, be clear. Then you can be loved.