By Sandra Rose  | 

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Instagram/@Drose

New York Knicks guard Derrick Rose is off the market. The 33-year-old all-star is engaged to his longtime girlfriend and baby mama Alaina Anderson.

Alaina showed off her massive diamond ring during a romantic dinner at Madison Square Garden, PEOPLE reported.

Derrick posted a photo of their romantic date on Instagram. He captioned the image by rhyming about their first meeting:

"To My Ace I didn't know things were going to go this way.
Even from the jump I didn't know I was texting Big Jay.

I didn't know how you were going to perceive me.
But this entire time I was hoping that you would believe me.

Believe the words that I will have your back and love u forever.
When I FIRST saw you I told Ryan that we were gon be together.

It took both of us a while to let down our guards.
That's only becuz both of our hearts were scarred.

We are two peas in a pod becuz we are truly MISUNDERSTOOD.
We got our heart and swag from this place called ENGLEWOOD.

I will always love you becuz you go above and beyond
We built a beautiful family and a unbreakable bond. Thank you Queen."

Alaina posted photos of her ring and a video showing off her sparkler on her Instagram page to make her followers envious.

The Instagram model captioned the video: "MRS. ROSE MY FACE HURTS Just got engaged in MSG nothing major!"

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Instagram/@alainataughtyou

Under a closeup image of her ring, she wrote:

"He gave me this ring yesterday talking about hopefully one day I can get you the real thing. What a clown."

Photo may have been deleted

Instagram/@alainataughtyou

Derrick and Alaina share a daughter named Layla. He also has a 9-year-old son, Derrick Rose Jr., with ex-girlfriend Mieka Reese.

Alaina, 26, has a website, Keepitcutefitness.com, where she sells fitness and workout gear.