My 21m girlfriend(21f) constantly encourages unhealthy eating when she knows it annoys me and makes me feel worse

AIO? I’m trying to diet and my girlfriend constantly encourages bad eating

This is a simple one but for the past 2 years I’ve really tried to cut down on how much junk food I eat and she’s tried too.

She still kinda eats what she wants but just less of it ig but I’d been trying to completely cut it all out.

When I’m by myself it’s really easy because if I go shopping I just don’t buy anything that’s junk food and I’m really good at not doing so. I never buy fast food because it’s fucking expensive anyway and I care more about money than any sloppy burger.

But it just seems like every. Single. Time. She comes over or we’re together EVERYTIME I’ll slip up and eat something that I shouldn’t be.

For example she booked for us to watch the new silent hill film yesterday (it’s awful) and yk, you HAVE to get snacks for the cinema. I’d done pretty well on my diet so far this week so I agreed (didn’t have a choice) and in the supermarket I only picked up 1 packet of squashies which were about 350 cals and didn’t seem too bad, we met at the checkout and she’d picked up. A bag of maltesers, 4 stickers (pack), 5 twirl bars (pack), a fudge brownie milkshake, a big bag of fruit pastilles and then when we got to the cinema she got a tango ice blast large and I didn’t get one. So I’d picked up 350 cals and she’d picked up like a daily calorie intake…

The thing is she’s a really slow eater and I’m not so when I get that taste of sugar or chocolate in my mouth it’s like a hoover and I can’t stop..

I ate 3/4 of the maltesers, 2/3 of the tango iceblast, 1/2 of the squishies and 1 snickers.

When we got back to mine we left the chocolate on the side and went to sleep, the next day she went home and left all of the junk food at my house so today I’ve eaten 2 snickers and 3 twirls and the bag of fruitpastilles.

I’ve set boundaries and told her it genuinely is like an addiction to me and I hate myself after I’ve eaten that sort of stuff. It’s ruining my gym progress and you might think I could’ve tried not to eat as much and yeah I agree but I do like after the cinema she got a McDonald’s too (6 nugget meal) and I didn’t get anything but she still was holding chicken nuggets in my face when I’m driving and obviously I’m gunna eat a McDonald’s chicken nugget. (I had 2 and rejected anymore)

I’ve told her so many times to stop it or whatever and I just feel like sometimes she does it on purpose but I know shes not that type of girl to be like that and she’s not meaning to do it like that but it’s recently coming across like this because it’s everytime she comes and we get a McDonald’s and I’m forced to cook separate or we have to get chocolate to drink our teas with. The thing is she’s not even big she’s like 72kg 5ft7 idk does anyone have advice for this because I’ve just eaten all that crap and once again my weekly diet is ruined and if she didn’t come it wouldn’t have happened