Loved this! I love a good friends-to-lovers path + flirty LIs, so naturally, Theo had my attention immediately, but Felix is also an interesting LI who I'd definitely replay for.
I'm curious about Alasdair (since I was hardcore Theo this first playthrough, I barely saw Alasdair) so I'll probably replay and get his help lol.
Basically, I think you've created at least two, and probably three, great LIs and an interesting story, and I'll definitely be following your progress!