I wrote about the original by Frankie Lymon and the Teenagers here https://am-records.com/2020/03/17/frankie-lymon-the-teenagers-why-do-fools-fall-in-love/ but I did not know about this version by the Beach Boys which was the B-side of their 1964 single Fun, Fun, Fun. It reached No 120 in the US in its own right.
A piano intro which some authorities say was played by Brian Wilson was discovered a lot later and added for the 2009 compilation album Summer Love Songs.