Many things can be accomplished by intentionally making your Tamalewd unhappy.
For the forms they take when you make the first form unhappy, on both the upper and lower third evolutions, try spamming the BATH button.
To get the secret evolution(get check marks on those forms in the STATS menu), you need to make them as unhappy as possible, and simply spamming the BATH button without doing anything else to them is the easiest way to do that.
...Assuming that was what you needed help with.