so i started combination feeding nd he vomits now like thick yogurt consistency before with only breastmilk he used to be fine is that normal or should i stick to only breastmilk?

Yesterday I went out with my boyfriend went to watch a movie, me and him don't live together yet. but point is yesterday when he was dropping me off his like sleep over at my house witch the mom and dad lives. I said no,
his response was why is everyone deciding or making choices for you and their going to do the same with the baby, when I know that's not true. what he thinks is that my mom tells me not to sleep over. So he left all mad. and I felt in my heart that he went on and cheated on me...
Not only has he not responded, now I have to sit here worrying if something happened 😣😒
I think I'm going to do breastfeeding and see how he attaches to me & if not I'm going to put him on breastmilk formula.
i feel so bad feeding my baby formula but he is getting full with my breastmilk and i dont think i am producing enough😔

🤦🏻♀️ i know i ain't the only one that seen that