You did not say what size engine are what it is in, so I'll try my best to give you the correct answer.
If you have a v8 or v6 engine, Then it is very common for the intake manifold gasket to leak engine coolant into the lifter gallery when the intake gasket blows.
It is not common what so ever for a head gasket to allow antifreeze to get into the oil when they blow. Need to check intake gasket first. If we did not help you then ask your question again.
no but antifreeze in oil will eat the bearings
No, oil is lighter than antifreeze.
NO! Take it to a mechanic immediately. Call AAA at once, if you are a member. Oil is not antifreeze and antifreeze is not oil!
Look at the oil on the dipstick. If you have antifreeze leaking into the crankcase the oil will be milky.
A bad head gasket is the most common cause of antifreeze mixing in the oil. The antifreeze will dilute the oil and it will eventually cause your engine to seize up.
Intake gaskets have failed.
Could be oil mixing with antifreeze indicating a bad head gasket Are you losing motor oil?
vehicle will overheat. just dump the oil and antifreeze , flush engine and refill with clean oil
antifreeze leaking into the oil pan
a blown head gasket
cracked head
yes