Hi Tania and welcome and thank you for posting here before bf wrongly
![Sad :(](./images/smilies/icon_sad.gif)
hauls kitty off to pound.
First, your kitty is crying for help - the answer is not the pound!!!
Second, tiles can be cleaned, pets are a responsibility and that entails some extra work sometime... they come for better or worse and they depend on you to take care of them when they are sick or something is wrong...and when this sort of thing happens it's a big red flag to get your kitty to a Vet and pronto!!
Your instincts are right to see a Vet, your bf's are wrong, very wrong.
Sadly, your kitty was not taken to the Vet sooner because your kitty could very well be suffering from an underlying medical problem (ie anything for bladder infection which if involves crystals or blockage could at some point kill him... to idiopathc bladder problems - all of which are extremely upsetting and painful and discomforting to the cat) or perhaps something else going on entirely but w/o a Vet visit you will not know the answer and be doing a huge disservice to kitty. And the sooner you get help in these situations the better, even if they turn out to be behavioral.
Don't let the fact that you don't see him doing this all the time stop you from thinking this kitty needs a Vet check and pronto. These things can be cyclical or you may be missing more than you know and I don't mean just pee on the floor. (Also, cat's love smooth surfaces, cool ones like tubs and tiles are favorites for kitties with urinary tract problems).
Urinary behavioral problems are often rooted in present or past medical conditions, esp. with in appropriate urination. They may also be stress related and if all physical problems turn to be ruled out you will need to look a his environment including his interatciton and life with the other cats, you and your bf as well as outside stimuli, etc.
With all this in mind
I strongly urge you to call your Vet and make an appointment to have him seen ASAP, have a urine sample at minimum done, have Vet take a look at kitty, etc. etc...then go from there.
Please let us know how you make out....several of us have been through this first hand and once we know more what you are dealing with specifically can perhaps help more.
Hope your kitty will be ok!
D~