If South Passes then reaching 4♥ all depends on Wes's rebid

16 points is a little weak for a conventional jump to 3♥ but West needs so little from East to make the game that I think it is worth a try.

Of course South an muddy the water by opening a weak 2♠ . Once again 3♥ by West is going to be passed by two many East hands which would allow 4♥ to make so I think West should bid 4♥ here. Of course Bridge is a game of views and I wouldnt expect everyone to agree with mine on this hand.

4♥ makes if East counts their losers and realises they eed the diamond finesse if the ♥ K is offside.