My boyfriend said he would break up if I can not lose my weight, what should I do?

Artandthom

I am 155.8 cm. and my weight is around 68 kg.
He said he would break up if I can not lose my weight cause he want to have a girlfriend who is beautiful inside and out side.

I asked him what will happen if I got fat after married , he said we will break up with me.
I told him that I can gain weight after being mom or when I get old so he said he will help me to lose my weight.

If he insist on doing this I will consider about breaking up, cause I do not want to spend my life and being in relationship that make me feel insecure in love.

What is your opinion about this?

Updates
1 y
He also said if I can lose my weight I can ask him to do anything like to
stop drinking or smoking or anything.

so I told him that "I will not take responsibility to any body's health, it is your duty to take that responsibility. I can tell you to stop smoking or drinking, if you can not do it I will not control you , I do not like to control people" and I never told him to stop drinking or smoking cause I trust him that he will not drink or smoke too much.
Updates
1 y
PS. I do not mean that I will not lose my weight , I am trying to lose my weight.
It is just I can not confirm that after losing my weight I will not get fat again at any point of my life so that makes me feel insecure about our relationship.

Anyway I know that one of the most important thing is trying to be healthy for myself and I am on the progress of losing my weight for being healthy

I really appreciate and thankful for all of comments.
My boyfriend said he would break up if I can not lose my weight, what should I do?
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