My brother u dont knw what u ave untill u lose it....that girl z inlove with u and thats y she z afraid of losing u...telling u abt break up z just to knw hw u will react to it...u are the cause of her being jealous,must u party?what z meaning of love?and love requires sacrifice,if u knw that going to party and being with many ladies will bring u guys problem y dont u 4get abt panty?and another in every relationship z...be very observant..and make sure that u knw when ur partiner need to feel love...when ever she z jealous y dont u reasure her that she z love of ur life and watch her mood,it will definitely change...thats my own advice dont think abt leting her go,bc if she do u will regret it..3 years no be small thing o