Romance Sidequest has these relationships to other tropes:

parents kids shares a parent with:
Romance Arc
parent child
Romance ArcThey Do
''Boy Meets Girl
''Just Friends
''Will They Or Wont They
''Relationship Upgrade
''Did Not Get The Girl
''No Romantic Resolution
''Marry Them All
''Dump Them All
''Uptown Girl
SidequestFetch Quest
''Sidequest Sidestory
''That One Sidequest
''Bonus Dungeon
''Bonus Boss
''Escort Mission
''Collection Sidequest
''Cartography Sidequest
''Gladiator Subquest
''Irrelevant Sidequest
''Mass Monster Slaughter Sidequest
''Twenty Bear Asses
''Loads And Loads Of Sidequests
You'll need to Get Known if you want to add or modify these relationships.