AceShowbiz - Cassie's boyfriend, Alex Fine, apparently wasn't too happy with Sean "P. Diddy" Combs' congratulatory message. The celebrity fitness trainer was caught shading the hip-hop mogul by liking an Instagram comment which blasted the latter.

Diddy was accused by the Instagram user of stealing Alex's "moment," as s/he wrote in the said comment, "I think people can see now who he really is. He has no place in the future you have both built, you're obviously a man with heart, integrity and the right values. Blessings to you all."

The social media user was likely referring to Diddy sending well wishes to Cassie after she announced that she's expecting a daughter with Alex. "Congratulations @Cassie and Alex," he wrote alongside a picture of the couple together. "I wish you all nothing but love and happiness. God bless (three red heart emojis) L O V E."

Cassie and Diddy dated on-and-off for about 11 years, before she moved on with Alex shortly after their split. The 32-year-old singer made their relationship Instagram official in December last year. The couple has been hit with split and marriage rumors during their romance, but they have never confirmed them. They did, however, confirm rumors of Cassie having a bun in the oven earlier this week.

Taking to her Instagram account, she accompanied the pregnancy announcement with a couple of pictures of her and Alex sitting in a car together. "Can't wait to meet our baby girl. Love You Always & Forever," so the "Long Way 2 Go" singer captioned the picture. Alex also shared his excitement on his own Instagram page, penning a heartfelt letter to both Cassie and their unborn daughter.

"You two are my greatest loves I have and will ever have. I cannot wait for the rest of our lives together and to raise a beautiful happy child in our beautiful happy life," he wrote on the photo-sharing platform.