Please help me remember these shounen-ai one-shots)

1. About a boxer and his friend who cooks tasty food for him. The boxer can't lose weight because of that, and they have a quarrel, and then his friend starts to avoid him

2. I think it was about a college student who became penpals with another guy (probably from the same college), the guy was sending him old-fashioned letters and he had beautiful handwriting.

... or something like that, that's all I remember, so I could have made mistakes in my descriptions 🙁

And I've just remembered one yaoi manga i'd like to reread: school student accidently saw his boring glasses-wearing teacher having sex, and got interested in him after that...

Thanks a lot in advance!

Is number 1 End Love chap 4-5 Sweet Destiny?

The plot is really alike, but I remember that in the one I'm looking for the weight loss problem was more serious, and even became the cause of their quarrel and avoiding each other)
Anyways thanks for your help, this one-shot is sweet!))

Lol. You're welcome. 😀
Then would it be Punch Drunk Babies?
And also, would the yaoi manga be Sensei to Himitsu?
I'm sorry if it's not it. I swear that I felt like I read these mangas. 😃

Is the second one the third story from Shoujo Mangaka no Koi?

Yeeeah, guys you are awesome, everything found except the one about the boxer!))
Thank you so much!