Early Morning Vent😡😤

I know it's early but I just needed to vent before I go to work . I'm 8 weeks pregnant and live with my fiancé. Yesterday it was his birthday and late last night I saw that his ex had his picture up on her watsapp messenger for his birthday. What I don't understand and made me upset is why does his ex have up his picture if he say they don't speak anymore at all ??? I asked him about it this morning and his response was I didn't know she did that and he didn't see it .......that isn't normal right ?