At a public appearance to promote jeweller Chow Tai Fook's latest wedding collection, she was asked if Raymond would be a good husband.
Karena then said that while they're not husband and wife just yet, Raymond does deserve 100 points as a good boyfriend.
When asked how she envisages her future marriage to be, Karena expressed that is not for her to think about, otherwise it wouldn't be a surprise.
She said the couple do not have plans for marriage because they both still want to concentrate on their individual careers as she believes girls should have their own career.
At a recent JSG recording, reporters asked Raymond about Karena's request for a surprise when Raymond proposes to her in the future and he said: "Of course, but we don't have plans for marriage.
"Raymond expressed he too gives his girlfriend a 100% and that this would be his last public 'love confession' to her.
He said: "Anything outside of work, I want to keep a low-profile.
I want to have my own personal space, but after I announced the relationship, you all have just been too concerned about our relationship.
It didn't turn out like how we imagined it to be.
"Raymond continued: "This is the final time I'm saying this.
"I really, really, really, really, really, really, really love BB (Karena).
I love my family and BB's family.
I want to keep this love inside, in my heart.
There is no need for me to always mention it.
This is my last time saying this.
"Raymond said he "really loved" BB a total of 7 times!