Struggling to adjust to my DFs marriage

[Beexo]

My DF got married 2 months ago they have been together for 14 years and it was overdue. SM has moved in with DF permanently and her son now has her house. Previously we had some shared events together but not everything , now whenever I went over for Xmas DFs wife and her family are always there. I really miss just seeing my DF on his own sometimes. I naively thought nothing would change really but everything has. I like her a lot I'm probably being spoilt but how long did it take for everyone to adjust?

I dont think you are being unreasonable. You say you like her a lot, after all. Your experience a sense of loss and grief as you once knew your father. He is the same but the circumstances around your relationship feel different.
Talk to him about it and maybe ask if you can meet him one on one to spend some quality time together. These things can feel painful, even when our family members are happy for it and we are also happy for them but sad.
Be kind to yourself. Its a normal, human response x