for some reason i understand where felix's jealousy comes from...of course he'll get jealous because at some point that guy (noah) became part of gio's life, that there's something in him that made gio fall in love with him...and of course even though it's already in the past already, the anxiety he's feeling rn is still valid unless he got the assurance words and actions from gio....this is why communication is very important in every relationship, if u don't want to feel jealous, then straight ask your partner about it...and work it out....being jealous is normal after all.....what isn't normal is jumping to conclusions (worst, causing a scene!) without communicating first with your partner.... Who wouldn't be shock after knowing the truth and that truth didn't even came from your partner's mouth, all he knew was how gio introduced him which is "Leo's friend" or "neighbor friend"
i also understand gio's stand why he didn't say it in the first place, he doesn't want felix to make feel uncomfortable around noah, knowing that he had a past with him.
I know some people will think that lying is also needed in a relationship, well if that's what u think then make sure ur partner wouldn't ever be able to find it out :)
sorry if this gotten a little bit long, it's just that i saw many comments about felix that he shouldn't be jealous, after all his feeling is still valid, he just need some time
almost everyone in this comment section wanted this etory to end already ksjsksjska BUT OLS MAKE SURE THAT EVERYONE'S HAPPY π_π