Problems with iMessage

I recently switched from an iPhone 5s to an X. Every since then when I send a message from my iPad, Imessage will then send all texts from that recipient for my phone number to my Apple ID on my iPad. This happens even when my phone number is selected, all texts from that point go to my iPad unless the thread is completely deleted. I went into settings on my phone and only have my send & receive set to my number and on my iPad I have it set to only my Apple ID. It doesn’t seem to matter if they have my Apple ID and phone number listed under the same contact entry or two separate entries all messages still go to my iPad unless the thread is deleted. It never did this before I got the X. Is there a way to stop this from happening? I don’t always have my iPad with me and I’ve missed text messages.