Is my boyfriend being too controlling?

So my boyfriend and I have been having this debate/fight for about less than a year now. He is very fitness and health oriented, and while I do exercise doing sport a few times a week, for the most part, exercise is not a huge part of my every day to day life. I don’t enjoy it, and I prefer walking/doing a sport to running and playing soccer 4 times a week like he does.

He is also very healthy eating conscious as well. While I don’t mind having a takeaway pizza or meal on a Friday night after a long week so we don’t have to cook or clean up, but he is admitted that we shouldn’t be getting any take away at all, and if it is, it’s gotta be the “nicer” take away. So have a wood fired pizza that costs $20 each instead of a $5 pizza from Pizza Hut or something.

In the past he has gotten really upset about my weight and eating habits because he thinks that I am eating myself in to an early grave. I am in no way over weight, I am still within a healthy bmi range. While I’m sure I could lose a few pounds, I am happy mentally with my body.

Recently, we went on holiday to Italy, and most of our meals were pasta/pizza, and lots of gelato, and soft drinks with meals. Breakfasts were pastries and juices as well.

Now I have been really good food wise as in not eating out and only eating a diet of veggies and fruits and meat for the few weeks in the lead up to this holiday because I knew I would be eating a lot and it would be a big blow out.

After a week or so on holiday, my boyfriend said he was concerned that I think that fruits on a pastry are included in my fruits and veggies daily intake (I don’t think this at all) and he calculated the amount of sugar on my plate at breakfast and it was twice what my daily intake should be, and that I need to cut down. He said he had a dream as well that I was just eating so much crap food I ballooned with my weight and it made him scared, and then seeing me eat so much at breakfast was like his dream coming to life.

I said that while I heard his concerns about the amount of food I have been eating:

1. we are on holiday and this way of eating pastries for breakfast everyday is not going to happen when I get back home, it’s just a treat. At home I eat oatmeal and banana or a healthy cereal. It’s not the end of the world.

2. It oversteps the mark for him to be calculating the amount of sugar that is on my plate. That is just way over the line and something he should not do at all.

3. It upsets me the way he is focusing on what I eat and what I weigh so much. It makes me so upset.

I checked his phone as well and there are messages to his sister saying how shit it is I’m doing this to my body and I will kill myself by 40 at the rate I’m going and how she should have a chat with me when I get home (she is a nurse) and I am just so upset by this. I’ve had people message about me behind my back before and I just hate it.

Honestly there are days where I think of ending things with him because I can’t take it anymore. But then I think of our house and our cat and how much he does love me and that this is something minor and small that I can help him to overcome.

Idk I think I’m just so overwhelmed with all this I don’t know what to do. I just hate that he fixates on it so much.

Edit: we live together and have a little cat as well. Been together 2.5 years.