My husband send his ex flowers.

Elly
How guys, I need your thought about that;
My husband sending flowers for her ex on Mother's Day since he is sharing 2 girl with her one is 30 and other is 22 . Her birthday is same day as mother day.
My husband said he is sending flowers on children behalf. We been together for 16 years but we do not have a child together yet.
Do you approve or disprove his behavior?