Make an appointment with your doctor. He can do tests to find out what the problem is.
You can find some general guides at the FDA website, but it isn't the greatest option, as a healthy weight can vary depending on a persons bone density, lifestyle, and stress level. Your best bet is to have your doctor weight you, and asvise you from there.
Cannot be answered without further information. What is the adhesive? Are you under water or dry? Is it a tile or marcite surface? Please asvise
I've also being in a similar situation and asvise you to make sure that this is waht you want because friendship lasts longer that a reletionship. Then you can start by asking him if he really mearnt what he said and if he did give it a try!