"He's telling her more and more that he loves her," said a source close to the couple. "It's helping and it makes Kristen feel special and cared for."
Robert's actions are a break from his tendancy to be more reserved and keep his feelings to himself, but his friends say the move is part of his bid to do anything to keep up his good relationship with Kristen, now that they are back on track after their brief split.
Robert is said to be getting more comfortable with being open and vocal about his feelings for Kristen, which is doing the couple no end of good.
The pair, who like to keep their personal life out of the limelight, have also been spending more quality time together, both at home and on hoiday.
"All is perfect in Rob and Kristen's world," said a friend. "They are really happy to be back together."