The Vampire Diaries star Ian Somerhalder and his ex Maggie Grace have had a complicated relationship.
First, they were step-brother and sister on the hit TV show Lost. Then, after that series stopped filming they began to date - and they even adopted a cat together.
They have since broken up - but it didn't put Somerhalder off entering relationships with his co-stars, he went on to date fellow Vampire Diaries star Nina Dobrev for two years.
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As with Dobrev, though, Somerhalder and Grace have clearly remained on good terms. They were spotted at the Lost reunion party hugging affectionately. Take a look at the pictures here:
So what do you think this means? Could there be something going on between the two - or does Somerhalder just manage to say on good terms with his ex-girlfriends? Share your thoughts below.