It's plan to see that my pic is different in Develop than it is in Library. What can i do to fix this?
Please have a look at the following link : Why do my Images in Lightroom look different in the library module after I have edited them in the develop module
Also you may check : Photos in Develop module look different when switching to library module
This is usually due to a defective monitor profile.
As a diagnostic tool and a temporary fix, try setting the monitor profile to sRGB.
If this fixes the issue, you should calibrate your monitor with a hardware calibrator, which will create a new, sound profile.