Is a young man's refusal to eat food with his mother considered disobedience (disrespectful behavior toward parents) if the reason is his fear of increased lust and falling into the forbidden, especially with the high costs of marriage?

Obedience to parents is restricted to what benefits them, without causing harm to the child. The mother can be pleased by eating harmless food at her home. Marriage is a good deed that should be hastened, while taking the necessary means, including searching for a righteous family.