So I've been with my girlfriend for around a year and things have had highs and lows, but recently, she's been really low and sayong things like "you dont spend enough money on me" or " my friends boyfriends always take them out." She then lied to me about something and is now stalking my ex on facebook with her friends, findiny pictures of us and texting me saying I looked at my ex the same way and ot brokw her heart.we seem to be constantly arguing atm, but I don't wanna break up with her. What other options are there to solve this?