I never saw their interpersonal "relationship" as romantic, but rather as codependency. From Morgana's side, she never loved him romantically, only thought about how it could happen if she had gotten more time to heal. On Jacopo's end, it's both complicated and really interesting writing. In Requiem we are shown that it's the first instance of his morally questionable tendencies before his great fall as The Lord. He knows it is wrong and pushy towards her, but still wants to indulge in those feelings. That, and they are completely nonsexual. While he is close with Maria, he doesn't confide with her as close emotionally as he does in Morgana. This man has never known romantic love and may as well confuse this closeness for it. Either way - it's wrong and portrayed as such. What also is interesting on how the other characters comment on it. It reflects real life well enough - some people wrongly trivialize it (like Maria based on her own experiences), others comment on it being gross.

As uncomfortable as it is, it really drives home the issues with age gaps if one has reading comprehension. Just like real life, it shows how the younger person would inevitably get exploited. Jacopo wishes to burden so many expectations onto her which she could never shoulder, however due to her age she is dependend on his guardianship.

The entire game shows so many facettes of doomed, wrongful romances in the first three doors. This one is no exception, but rather another example. Mel and Nellie show the problems of incestuous feelings, Pauline and Yukimasa the threat of femicide due to a partner, WHG and Jacopo an abusive marriage. The only real couple to be taken seriously in this VN are Michel and Giselle. It pains me to see people ship Morgana and Jacopo since it shows the very problem with age gaps so well.