Why there is rarely any chemical reaction between oxygen and nitrogen present i

Nitrogen and oxygen are both thermodynamically stable in the normal temperature. That is why we can have N2 and O2 in our atmosphere without any chemical reaction. But when there is lightning which produce high temperature, there might some reaction between nitrogen and oxygen to form NO. So, that is why we can rarely have reaction between the two elements unless in certain condition.

Both have the same type of affinity to take part in chemical reaction.Oxygen try to attain two more electrons in it's outer orbit, while nitrogen try to attain three more electrons in it's outer orbit. That make both with electronegativity.Same charges always try to repel hence no affinity for chemical reaction between them.However as you mentioned under some particular conditions they unite to form nitrogen monoxide,nitrogen dioxide and nitrous oxide. These are rare occasions,so we have sufficient oxygen to breathe.

Well they did get together once but they made all the other elements laugh so much that they never tried it again. Nitrogen is almost totally inert at standard temperature and pressure.