Omigosh im sorry but i read the novel long ago so i dont remember much
but he accepted her and at some point he became paranoid about her going back to her world so he locked her up but our girl being the badassbitch she is, she proved that she will stay and he cant lock her up
It may or may not be accurate i think i mixed some up this is base from my inaccurate memory
spoiler
when she told him that shes not the real penelope she was in a very distressed state and he just believed her, told her that he doesnt care because he loves her and not the "real penelope" and comforted her for a long time and yeah like peperoperolina said he was a little afraid of penelope returning to her world and leaving him alone (he had insomnia and other stuff because of that fear i think) and honestly i get that because he expressed his love for her a lot more than she did, sometimes it felt a little one sided so he wasnt sure if she really loved him like that but in the end she often reassured him that she loves him and that she wouldnt leave him so yeah it all worked out
Does Penelope ever tell anyone that she’s not the real Penelope and that she’s from another world??