Don't be silly.
YSL is not WP and WP is not YSL. YSL is a half wit who was rewarded on the basis of loyalty to a man and not to the party. The party has acted. If LTK , CSM or Sylvia had acted in this manner, its is different matter. He was given Hougang by default.
Every party has personalities known for their extra marital history. Look even SDP has one shameless character who is even bolder and still wanting to have high profile. The PAP has a slew of such characters. Even NSP has a colourful character.
Should not get excited over such things. Remember its YSL and not someone important or relevant. Though an MP, that ward is loyal to LTK and the party.
Anyway knowing LTK, he will shrewdly find a way to ease idiots out such as he did with James Gomez. As this is his imbeclic act, I am sure LTK knows what to do. All he has to do is find someone credible and hand the ward over. Do remember, after capturing Aljunied, he does not need to concentrate his firepower and should be prepared to release Sylvia or CSM as an option for Hougang for the next GE.
I would not get get carried away with this sideshow of little importance. Frankly I am more interested to see if SDP and NSP carry on with the longest status quo in Singapore Parliamentary history of having actively contested elections at each GE and nothing to show at the end. Lots of work to be done to lift the game with cohesive strategy and the right people.