I can’t find out who wrote this. It was released in 1965 as the follow-up to the group’s No 1 hit Concrete and Clay the same year. https://am-records.com/2021/09/09/unit-4-2-concrete-and-clay/ It got to No 14 in Britain and No 98 in the US.
Unit 4 + 2: (You’ve) Never Been in Love Like This Before
Square