Never lower your standards just because you are lonely. It is better to be by yourself than to be with the wrong person.
Saying I'm over you is showing that you have finally accepted the fact that the relationship has ended and you have moved on. I'm over you means that you no longer pine for the other person or obsess over where they are and what they are doing. There are many I'm over you quotes out there, and some show great growth by the people who said them while others are tinged with bitterness and show that the author was not really over their lost loved one at all. When a relationship ends the hurt can liner for weeks, months, or even years. Until you have healed you may not possible to say I'm over youi, but keep hope because eventually you will reach this point.