Robert Pattinson and FKA Twigs were reportedly seen having an intense fight for two days in a row following the latter's successful performance at the MOBO Awards.

The couple was seen happy and relaxed when they arrived at the MOBO Awards, where FKA Twigs performed a racy song and dance number on Wednesday, Nov.4. The "Twilight" actor was there to support his fiancée as he was spotted watching from the audience. It was a successful performance as many had taken to their social media pages to talk about her stellar gig. However, it was a bad night for Robert and FKA, who reportedly started clashing right after the latter's show, MIRROR reports.

Their disagreement reportedly started when an audience requested Robert and FKA for a duet since the former is also a musician. The singer, also known as Tahliah Debrett Barnett in real life, who received Best Video for her track Pendulum during that night, reportedly seemed unimpressed with the request.

"He said that he'd love to, but she shook her head and he stormed off. She was comforted by female friends outside the toilets. It was tense," a source said.

Meanwhile, Robert and FKA were reportedly caught fighting in a cab after their MOBO Awards fight. It was said that the duo were fighting while they were in a taxi when a witness overheard that they were swearing at each other.

"Twigs flung the door open and they started screaming at each other," the witness said. "Rob was livid and said, 'Why the f***ing hell were you waiting there? You knew where I was.' "

Robert and FKA got engaged earlier this year. They were rumored to be planning their wedding for a long time, but as of late, no wedding detail has been revealed. This stirred unending split rumors between the two despite their silence.

"They haven't drifted apart [despite claims], but they haven't spoken as much lately because of his filming schedule," a source told E! News.

At present, they are both busy with their careers and are working in different countries. The 2015 MOBO Awards event was the first time that the popular couple was spotted together again after a long time. Robert and FKA haven't commented on the issues.