Advice... About man...

So like a week before christmas... I finally had enough with my man talking to his ex and being friends with her, and put it out there that I couldn't do it if he was to continue the friendship. So he stopped talking to her...

She at first would call him a bunch and he ignored them the best he could. Then she stopped and its been good...

I keep having this thing where I feel shit is going to involve her though. I'm working on it...

But this morning i went in the room he was talking to a female i left to grab the plates came back in he was off the phone. I thought it was strange how quick he was off the phone. This happened at like 830 this morning.

Its now 2pm and i asked him who it was and guess who it was her. They talked for about 2 mins and it involved her taxes being sent to the house. Then it was over.

The thing is he wouldnt have told me if i never asked. And I'm kinda upset he didnt just hang up on her and that she just called him ugh i know its immature but i HATE how this makes me feel.

I need some womanly advice PLEASE

I know this may be petty but idk😔