I think it’s time to ask, as opposed to tell. Instead of saying, “I’ve fallen madly in love with you,” how about, “Does it feel like something’s different between us?” 

Then you can say, “I’m developing some feelings but don’t know how to proceed. Can we decide together?”

Or something like that. Basically, you need to know she reciprocates because the “will we or won’t we” question is taking up a lot of space in your brain. If she’s not interested, you’ll probably want to dial back the contact, and make everything less couple-like. You’ll need to make room for other crushes, dates, etc.

If she does feel the same, you’ll still need to discuss opinions. You’re not ready to promise her the world, so don’t. If you’re not sure what you want to do about these feelings, that’s OK. I do fear a big confession implies you want it all.

As for train/birthday plan, please consider whether she’s someone who likes surprises. She could have plans with friends. She could have a date!

Sometimes it’s nice to know someone is coming. I would prefer hints – so I can be prepared.