is my brother’s friend interested in me?

i (24f) started hanging out in my brothers friend group this summer, and his friends have seen me a handful of times. my brother’s best friend (28m) is a nice guy who i dont talk to much but is polite and courteous any time we see each other.

friday night i got out of a kind of toxic and scary situation-ship with a guy who said “i love you” after knowing me for three days, and was harassing me and contacting me from various social media platforms, despite me telling him i didnt want to talk to him any more. i was depressed because i felt like i kept attracting the weirdest men (my ex became a racist asshat after we broke up). to console me my brother said there are plently of nice guys who would like me, and said “i wasnt gonna tell you this because i didnt want to make u uncomfortable but i think [28m best friend] likes u”.

i was surprised because i never got the feeling he liked me, but my brother said since hes a good friend, he would never do anything to make me or my brother uncomfortable, but my brother has gotten some hints he may be interested.

a week ago i got sick and went to the hospital one day too, and my brother said he texted my brother multiple times asking about my health. i said thats a pretty normal thing to do as a good friend, but my brother said his friends never do that even when they hear about each others family members getting sick, and they never follow up like that. ever since he met me, he apparently occasionally texts my brother and asks how im doing. and my brother said he cant remember exactly what hes said, but that this friend has spoken fondly of me before to my brother in a way that made him think he likes me and that hes “slipped” a couple times in the way he talks about me. this friends mom apparently asks about me to my brother too when she sees him, even though she never met me until yesterday. my brother also says im exactly his type, based on his previous relationship(s) and what he says he wants in a significant other.

its weird because i never ever got the feeling he likes me. hes nice and polite and i know a good friend to my brother, but hes never flirted with me or given me special interest at all. in fact, i was at his house yesterday and i felt like he even wouldn’t look at me. i asked him to show me where the washroom was and he didnt even look up at me. i also never thought he’d like me because im more quite and serious and he’s very funny, jokes a lot, and is way more chill.

my brother is convinced though but i have no clue why. so, for guys who have fallen for a friend’s sister, what would u act like? is there enough info here to draw a conclusion?

tldr: my brother thinks his friend likes me but i dont think he does