Is there a way to find which side the mouse entered my ImageButton?

So I have this basic script I'm making, when a users mouse enters the ImageButton, it rotates to 25 degrees, then when the mouse leaves, it goes back to normal.

My question is, can I find which side the users mouse entered on? I am trying to make it so when the user enters on the left side, the rotation will be 155 degrees instead of 25.

Here is my current script (under image button):

local imgbutton = script.Parent

function MouseEnter()
	imgbutton.Rotation = -25 --mouse enter on right
	--mouse enter on left here
end

function MouseLeft()
	imgbutton.Rotation = 0
end

imgbutton.MouseEnter:Connect(MouseEnter)
imgbutton.MouseLeave:Connect(MouseLeft)

What feature can I use to achieve this? I'm extremely confused, and I'm unsure if there is a way to do this, any help is appreciated!

Could you put invisible GUIs next to the one which you want to rotate. Then detect which GUI it passed through (to get to the main one). Just put a debounce kind of variable in there too :)