Tongue-tied

Observation: I am an uninteresting person. I have nothing to say. Nothing.
Seinfeldian inference: Talk about how there is nothing to talk about

Perpetual doormat

I need to grow a backbone 

one of these days

Wisdom

Sex is like money. The more you have it, the more likely you are to get more. The corollary is just as true. The less you have it, the less likely you are of getting any.