Having a girlfriend is cuckoldry
If you have one as a nonchad, then you're in this foid's perception a mean for reaching chad. Thus it's sure that on first occasion you will be cucked; that’s cuckoldry.
If, on other hand, you have one as a chad, then you're letting rest of your countless harem flow to other, less bussy chads; that’s cuckoldry.
Therefore having a girlfriend is cuckoldry.