Would've been more satisfying if he just revealed everything to her parents and left her, but whatever. Didn't have much hope for a series that was doomed from the beginning, anyway.
Came here from the anime and spoilers/theories, and I don't think Eren impregnated Historia. On pg. 10, Historia says, "...I wasn't put here to only take care of cows." I think this is implying that she's busy trying to get pregnant with the farmer lol.
Oh god no. Now this is really susceptible to NTR. I rather he tell her the truth so they can sort out their feelings together instead of watching some dumb NTR "drama" unfold and the MC regretting his stupid decisions.