Khloé Kardashian doesn't ''care'' French Montana wants to capitalise on their relationship.

The 30-year-old reality TV star isn't bothered that her boyfriend is trying to use their romance to boost his career and insists she's known about it for a while.

Taking to her Twitter account tonight (17.08.14), she wrote: ''It's amusing to me that Y'all think I don't see it. I was the first one to see it. I just don't care. (sic).''

However, she posted a cryptic message on her social media account last night (16.08.14), which sparked rumours their romance had hit the rocks.

She tweeted: ''And in that moment, everything changed...''

The 29-year-old rapper - who has been dating the brunette beauty since April - admitted in an interview three days ago that romancing the 'Keeping Up With the Kardashians' star was gaining him fans worldwide.

He told Billboard: ''I want to capitalise on it. I'll get a fan base from everywhere. I just hope I'll be able to connect with everything that's going on.''

Meanwhile, Khloé's family - including her mother Kris Jenner and sisters Kim and Kourtney - have reportedly tried to warn her about French's intentions in the past.

A source said previously: ''[They] are very sceptical of him. They think he's using Khloé for fame.''

Khloé was left heartbroken last year after she ended her four-year marriage with Lamar Odom following rumours he had cheated on her with multiple women and had an addiction to cocaine.

She filed for divorce from him in December but the proceedings are still ongoing.