It's dating, not marriage.
You can date while broke-- you just need to be more creative.
And don't loan him any $$ or borrow any from him.
If it becomes serious in the future then concern yourself with that then. In the meantime, enjoy picnics, free museum visits on odd days, and walks in the park.
Jeepers Jes - you took the words out of my typing (mouth) - I was going to also say - you aren't going to marry him (at least not now). As far as money - dating -- date who you like. If you get to the point of getting married, I can see looking at finances ... more to make sure you are both financially in a point to do so.
Just be fair about money - you can go out without spending much if anything. Seeing you both like to hike and be in the outdoors -- pack a lunch and go hiking, to the park, the beach.
Who knows what is in the future for you two - he might just be between jobs and then who knows lands some fabulous high paying job. The opposite could happen too - you can find some wealthy guy with this incredible paying job and then he gets laid off cannot find work and gets lazy and in deep debt.