Why am I flying along with the lure on my fishing rod?

I'm trying to make a fishing system but there is a problem. If I cast it once or twice it is fine, but on the third time the fishing rod pulls me and the rod with "pointer" or the lure on the end of the line. The pointer seems to also be attached to rod when it should fly off. Does anyone know how to fix this?

local ReplicatedStorage = game:GetService("ReplicatedStorage")
local RemoteThrow = ReplicatedStorage:FindFirstChild("RemoteThrow")
local RemoteRetract = ReplicatedStorage:FindFirstChild("RemoteRetract")
local RemoteSendOwnerName = ReplicatedStorage:FindFirstChild("RemoteSendOwnerName")
local Players = game:GetService('Players')
local onGround = false
local dt = 2
local DBA = false

function CreateFishHandler()
    local NewFishHandler = script.FishHandler:Clone()
    NewFishHandler.Disabled = false
    NewFishHandler.Parent = script.Parent
end

CreateFishHandler()

function FishFunc(player, mouse, rootpart, LP)
    for i, v in pairs(script.Parent.Pointer:GetChildren()) do
        if v:IsA("ParticleEmitter") then
            v.Enabled = false
        end
    end
    script.Parent:WaitForChild("FishHandler"):Destroy()
    local FishingGui = script.Parent.FishingIndicator:Clone()
    FishingGui.Parent = player.PlayerGui
    local Number = FishingGui.Frame.ImageLabel.Number
    script.Parent.StartNumberDrop:Fire(Number)
    script.Parent.StartNumberDropRE:FireClient(player, Number)
    script.Parent.ICaughtAFish.Event:Connect(function(sucess)
        FishingGui:Destroy()
        DBA = true
        if DBA == false then
            if sucess == true then
                print("yay")
            else
                print("uSuck")
            end
            DBA = true
        end

        local bv = script.Parent.Pointer:FindFirstChild("BodyVelocity")
        if bv then
            bv:Destroy()
        end
        script.Parent.isThrown.Value = false
        script.Parent.Pointer.CanCollide = false
        local length = (mouse.p - rootpart.Position).Magnitude
        attach(script.Parent.Pointer, script.Parent.Device, CFrame.new(0,0,0))
        script.Parent.Pointer.RopeConstraint.Length = 1 
        script.Parent.Reeling.Value = false
    end)
end


if not RemoteThrow then
    RemoteThrow = Instance.new("RemoteEvent", ReplicatedStorage)
    RemoteThrow.Name = "RemoteThrow"
end

if not RemoteRetract then
    RemoteRetract = Instance.new("RemoteEvent", ReplicatedStorage)
    RemoteRetract.Name = "RemoteRetract"
end

if not RemoteSendOwnerName then
    RemoteSendOwnerName = Instance.new("RemoteEvent", ReplicatedStorage)
    RemoteSendOwnerName.Name = "RemoteSendOwnerName"
end


local Pointer = script.Parent.Pointer

script.Parent.Pointer.Touched:Connect(function(Part)
    onGround = true
end)

script.Parent.Pointer.TouchEnded:Connect(function()
    onGround = false
end)

function attach(source, destination, offset)
    local weld = Instance.new("WeldConstraint", destination)
    weld.Name = "thing"
    source.CFrame = destination.CFrame * offset
    weld.Part0 = source
    weld.Part1 = destination


end

attach(script.Parent.Pointer, script.Parent.Device, CFrame.new(0,0,0))

local function onThrow(player, mouse, rootpart, Maxlength, speed, LP)
    CreateFishHandler()

    if player.Name == script.Parent.Parent.Name  then
        if not script.Parent.isThrown.Value then
            script.Parent.isThrown.Value = true

            script.Parent.Handle.woosh.Volume = .25
            if not onGround then
                script.Parent.Handle.woosh:Play()
            end
            local WeldConstraint = script.Parent.Device:FindFirstChild("thing")
            if WeldConstraint then
                WeldConstraint:Destroy()
            end

            local factor = 1
            local direction = mouse.p - script.Parent.Pointer.Position
            local length = direction.Magnitude
            direction = direction.Unit
            local result = (direction + rootpart.UpVector).Unit
            local BodyVelocity = Instance.new("BodyVelocity", Pointer)
            length = math.clamp(length, 1, Maxlength)
            Pointer.RopeConstraint.Length = length
            BodyVelocity.P = 10e10
            BodyVelocity.MaxForce = Vector3.new(10e10, 10e10,10e10)
            BodyVelocity.Velocity = factor * speed * result
            Pointer.CanCollide = true
            wait(length / speed)
            BodyVelocity:Destroy()
        end
    end
end


local function onRetract(player, mouse, rootpart, LP)
    if script.Parent.Reeling.Value == false then
        if player.Name == script.Parent.Parent.Name then
            if script.Parent.isThrown.Value then
                if script.Parent.IsFish.Value == false then
                    Pointer.CanCollide = false
                    script.Parent:WaitForChild("FishHandler"):Destroy()
                    local bv = script.Parent.Pointer:FindFirstChild("BodyVelocity")
                    if bv then
                        bv:Destroy()
                    end
                    script.Parent.isThrown.Value = false
                    local length = (mouse.p - rootpart.Position).Magnitude
                    attach(script.Parent.Pointer, script.Parent.Device, CFrame.new(0,0,0))
                    script.Parent.Pointer.RopeConstraint.Length = 1 
                else
                    FishFunc(player, mouse, rootpart, LP)
                end
            end
        end
    end
end


RemoteThrow.OnServerEvent:Connect(onThrow)
RemoteRetract.OnServerEvent:Connect(onRetract)