OK, so we know these two weren't technically in the same series, but we can't help but get excited when ex-"Love Island" stars get together. Donlan was paired up with Joe Garratt in 2019, but this didn't work out. Mabbott appeared on the first ever winter "Love Island" in 2020 and coupled up with Demi Jones. While their TV relationships didn't last, these two got together in 2020, moved in with each other after six months, and are now engaged.