He tried to pee on me?!

Okay, so my boyfriend of about three years came over today to drop by and sing to my stomach (currently 9 months pregnant and ready to pop). He showed up in his work van with one of his coworkers. Everything was fine and he made up this cute song for the baby and even offered to bring me some groceries if I needed any (we are currently living apart for reasons I won’t get into).

Then, as he’s walking to the truck to leave, he says he has to pee and just takes out his dick...in front of neighbors and everything!!!! He then decides to try and chase me with his pee and is laughing hysterically. It hurt my feelings and made me feel so embarrassed but I didn’t say anything since I didn’t want to make a scene in front of his coworker.

Am I overreacting? I have hormones but I honestly think I’d be upset about it no matter what. But is this just a guy thing and he was just trying to be funny?

I want to send him a text saying how I feel since we have an ultrasound appointment tomorrow and I’d rather address this before hand. However, I’m not really sure what to say since he’ll just blame my “hormones”.

I’m honestly upset and hurt that he would do that, especially in front of people!!! What do you guys think?