Constant criticism of my husband-to-be from family

Assalamu alaikum, I’m honestly drained. My family keeps picking apart my fiancé for the smallest things. I know I’ve only met him twice in person, even though we’ve been talking for months, but I don’t go looking for faults the way they do. They say he’s too thin, his legs look weak, he sits with his legs spread. When I said plenty of men sit like that, my mom said, ‘But his feet point outward, not straight,’ and that he walks oddly. It’s just exhausting hearing this nonstop.