If mouse enter statement between abbreviate and full form not working?

I have a text on screen that shows their cash abbreviate, but if they hover over it, they can see the full amount if the player wants to see it specifically. I used if statement at the bottom of script, but it seems to not work. Not really sure as I first joined, number is 0, however hover over the text, shows the full number. Any idea?

    N = 10^30;
    O = 10^27;
    Sp = 10^24;
    Sx = 10^21;
    Qn = 10^18;
    Qd = 10^15;
    T = 10^12;
    B = 10^9;
    M = 10^6;
    K = 10^3
}


function abbreviateNums(number)


    local abbreviatedNum = number
    local abbreviationChosen = 0


    for abbreviation, num in pairs(abbreviations) do

        if number >= num and num > abbreviationChosen then

            local shortNum = number / num
            local intNum = math.floor(shortNum)

            abbreviatedNum = tostring(intNum) .. abbreviation .. "+"
            abbreviationChosen = num
        end
    end

    return abbreviatedNum
end

while wait(1) do
    script.Parent.MouseEnter:Connect(function()

        if script.Parent.MouseEnter == false then

            local player = game.Players.LocalPlayer

            script.Parent.Text = abbreviateNums(player.stats.Cash.Value)
        else
            script.Parent.Text = game.Players.LocalPlayer.stats.Cash.Value
            end
        end)
end

Edit: This works kinda but hover over for a second and it changes the text. The while wait(1) overwrites mouseenter text, I think. Thought if mouse is entered true then returns, but doesn't.

script.Parent.MouseEnter:Connect(function()

    local player = game.Players.LocalPlayer
    script.Parent.Text = abbreviateNums(player.stats.Cash.Value)
end)

if script.Parent.MouseEnter == true then
    return
        else
        while wait(1) do

        local player = game.Players.LocalPlayer
        script.Parent.Text = player.stats.Cash.Value
    end
end