By Sophia Papamavroudi & Joseph Wilkes Prince Harry’s UK comeback could be in jeopardy, due to a sudden “change of heart” from his wife, Meghan Markle, it has been claimed. A source has revealed that the Duke of Sussex is now within a tricky conundrum over their proposed return to the UK next month. Planned to address the 10th Anniversary Service of the Invictus Games, taking place at St Paul’s Cathedral on 8 May, Harry faces uncertainty over his imminent homecoming. Harry’s presence at the service has been set on the official schedule, while Meghan’s participation remains as ‘TBC’ – To Be Con…