<human>: Can you give me a shortened version of the text?

Dating for close to three years now. My boyfriend has always been physically active, he's been lifting weights since he was a teenager, but he's always been a bit on the higher side of bodyfat percentage. He was never chubby or fat, but he lacked any sort of definition. He was strong, but and I liked it. To be honest - he wasn't my type at first, but then it really grew on me.

Now, in the last year, he has lost a TON of weight. He's still in incredibly shape, he's still strong, but he has gotten significantly smaller and it's making me feel uncomfortable. He has a very visibly defined sixpack, his arms got smaller and weirdest of all - his face really leaned out and got really weird looking. He's healthy and he's in shape, but I really don't like how he looks when he's this lean. His face used to be so warm and welcoming and "Full", now he looks like he's a drug addict, it's so gaunt looking.

I don't know what to do. I really dislike how he looks now but I don't know how to bring it up or what to say, or what to do.
<bot>: Boyfriend "leaned out" and now his face looks weird and he's gotten a lot smaller and I really don't like it.