Let’s be honest: both breaking up with someone and being dumped sucks. 
Staying in a relationship that you don't want to be in isn't healthy for either of you. Relationships only work when both people want to be in them. So be honest, even if it’s really hard.

If you're feeling unsure about what to say, try writing down your feelings and reasons for wanting to break up before you do it, and practice saying it out loud to a friend or family member. But, you need to be the one to tell them how you feel — no one else can break up with them for you.

Dropping hints here and there that you’re unhappy can seem like a good idea, but actually makes things harder. Acting rude or distant and hoping they’ll just “get the hint” will probably only confuse and hurt them. Be direct.