[Jeremy Corbyn (centre) and Diane Abbott
with anti-apartheid and
social justice campaigners Bernie Grant
and Tony Banks (front).
Mr Corbyn shared images
to mark Ms Abbott's 30 years as an MP
His former girlfriend became UK's
first black female MP in
June 1987
Pair enjoyed a year-long relationship
in the late '70s and have remained friends
Ms Abbott suffered criticism prior
to election but increased her majority]