The 36-year-old cage fighter - whose divorce from Katie Price has still not yet been finalised - popped the question to his girlfriend of seven months last night (08.10.11) on Irish TV show 'The Saturday Night Show'.
Alex said: "We're in Dublin, I haven't got a ring, but you know what, I'm going to do it. Seriously, nobody tell anyone! Will you marry me?"
Host Brendan O'Connor said: "You saw it here. The whole of Ireland wishes you the best for your future."
Alex - who marriage to Katie Price ended after just 11 months - recently admitted he and Chantelle are hoping to start a family after the 28-year-old beauty discovered she will need IVF (invitro-fertisliation) treatment and must conceive within the next three years if she wants to become a mother.
Alex said: "We have discussed having kids, of course we have. It's fast-forwarded things a bit. It's not the sort of conversation you normally have when you have only been together for four months. We haven't put any pressure on each other."
Gritty and involving, this small British thriller is like Memento crossed with The Bourne Identity...