I ignored her for a few days, and my ex-girlfriend said I was getting married. Let her know.

There are two possibilities for breaking up for a few days:

One possibility is that my daughter really doesn't want to get back together with you

I'm telling you as a friend,

Tell her you're getting married.

Another possibility is that she still loves you,

You ignore him these days,

I still can't forget it,

So to test you with this word,

If she's not the woman you want,

If you want to be completely separated, leave her alone.

If you break up just because you're angry,

You still can't forget her, and you think she suits you very well.

Just propose to get back together.

I wish you happiness! I hope my answer can help you.