Actually I hate to give you this but you can all make them romantically involve with you, I mean almost all of them wanted to be romantically involve with you, there are no consequences for poly relationship, you're just getting them each with their according routes except for Galiano and Garth (They are part of the main script as one of them is the only one where you kill or betray the other (means really hating you to the point they only want you dead or be their bitch.) The only waste you will do is the time trying to do all. Egon is recoverable if he doesn't like you once, cause whatever work you do in Akra's Bar. He'll like you eventually. I mean eventually, to spoil you, you can have fun with his Dad (Elion).😭😭😭