Ladies please respond this is driving me nuts...🙈🙈

So here is a pic of convo I had with SO I said Hey... His response what omg bae!!! Lol...  So I ask questions because it doesn't make sense. I'm I being crazy to think that he was responding to someone else by accident. His explaination was that it was crazy at work so his response was omg bae!! Lol.. I don't know if it my crazy pregnancy brain  overreacting or him try to cover up his fuck up. (Excuse me language) please give me input. I don't know how to feel please give me advice.