Moomin if one of my colleagues at work spoke to me like that then I'd be speaking to my/their boss straight away about it! He is bullying you, which is completely unaccepable.
Speak to your lecturer about it, and if they try and fob you off or don't take you seriously then go to your department head. If you still don't get any resolution, then find out who your student services or HR team are and take it to them. They'll have dealt with all this before and should be able to nip it in the bud discretely.
In the meantime, practice your steeliest glare and the old "Did you mean to be so rude?" retort! You are above him, he is behaving like a child and consequentially should expect to be treated like one.
In other news... Having some bleeding here. :( Started last night and it is mostly brown, no bright red at least. Enough to make me upgrade to a pad from a panty liner, but no cramps or pain alongside it.
I'm currently thinking I probably overdid it yesterday. DD hasn't been feeling well so I was picking her up for cuddles. Could also be related to the sonographer being a bit rough on Monday for my scan.
So I'm not too worried yet, but I might call my MW in a bit if it carries on. I'd feel really guilty though if she sends me for a scan and I have to miss more work, the day after starting back!
And of course this all happens when my DH is away for work. My nearest family are over 100 miles away, but I do have a few friends that I might be able to call on in an emergency.