Unpopular opinion

Ive been dating my S/O for 2 years and any time my family gets a change they belittle my relationship they tell me it isn’t serious and that nobody marrys their first love well here is my opinion ab that. They reason most first loves don’t last is either bc the relationship is toxic or the couple doesn’t care to work through their problems. Me and my bf on the other hand talk through things and understand each other on an entirely different level...please comment your opinions below I value everyone’s opinion