i feel silly for liking things or getting excited for things

You deserve to get excited for things.

You wouldn't be a human being if you didn't feel some excitement sometimes or like things🙂🪻
There's been so many times I had a nice plan in my head to do something fun only for it to fall through Bec I had pain, or my sister had to go to an urgent care appointment etc. But occasionally, I got to go it a week or two later and was grateful 🐦 I hope you can get to the lake soon!!

I think it's wonderful that you do, I'd love to have friends who actually look forward to doing things like going to the lake... I feel like most people in my life were always elsewhere in their minds, on their phones, getting bored, wanting to meet up with more friends when we had plans just the two of us, stuff like that. /=

I hope you never lose that gift. The ability to enjoy things and get excited about the future can see you through some challenging times in the present and give you the will to live.

These are all very reasonable things to do and be excited about
Your roommate is just a dingus