Kristen Stewart ''will survive'' Robert Pattinson and FKA Twigs' engagement news.

The 'Still Alice' star - who split from the 28-year-old actor in 2013 - is reportedly not fussed about rumours Robert and his new girlfriend are set to tie the knot and is enjoying being under less scrutiny.

A source told People magazine: ''Kristen is doing fine, working and travelling, and she will survive Robert's engagement. She has her own life and has moved on.

''Kristen lives a much more low-key life now and seems happier. It was obvious that she was struggling with the media attention [during her relationship with Rob].''

During their relationship, Kristen, 24, confessed to having an affair with the then-married 'Snow White and the Huntsman' director Rupert Sanders and the former 'Twilight' co-stars split up eight months later.

Meanwhile, another insider has claimed Taylor Lautner has ''reached out'' to Kristen following the rumours.

The source said: ''[Taylor] already reached out to her to offer support and to remind her that it's out of her control and not to beat herself up about the past.

''He found out about Rob's engagement just like everybody else, on the Internet, and as soon as he heard about it he reached out to Kristen.

''He's been there with her throughout all the ups and downs with Rob and totally understands how the news is playing with her head. He's always been like her rock and vice versa.''