I have recently been having dreams of my ex after so long of not even thinking about him. At first I thought that it was because of his birthday and that I must have been triggered by it only to find out that it was today (November 15th) I'm very confused because this is a dream I keep having every night. I haven't even seen him in months, and yet here he is again, showing up in my dreams. I don't know what to think- can someone please help?

Dreams of exes R
commonly symbolic, reflecting your feelings abt your current romantic
life/situation (or lack of one). Here's a link to the dream dictionary definition of that common symbol on this website which is based on their research:
t.co/G1GqHwokda. 

Also, you might want to check out the video about that symbol on their homepage (scroll down). If you type "ex" into the search engine box on the homepage, you will find even more, ranging from examples to podcasts (you have to login to listen).  It's all free.  Should help explain why you are having them.