Is it normal that i still love my ex-girlfriend?

im bisexual. my best friend turned girlfriend just broke up with me. to move on, i asked my buddy to give me someone new. she did. she introduced me to monique who is also bisexual. after 3 days, monique courted me. but when i was about to say yes, my girlfriend said she wanted me back. so i did, i dumped monique for my ex. but after 2 days, she broke up with me again. then, i learned that monique was now courting my ex. i was so devastated when i heard the news. much more when my ex said that she was falling for monique. since we are over, im once again her best friend. even though it hurts me so much, i helped the two of them be together. i insisted my ex to say yes to monique, but she said she was still not ready. after a week of courting, monique just avoided my ex and said that she doesn't love my ex anymore. my ex was so hurt. she cried non stop for days, and until now she's still crying. i did everything to comfort her. it pains me to see her like that. i treated her like a princess, then one day monique comes in and just breaks her heart. i still love my ex. but it seems like all of her love is on monique. but still i keep on hoping that she would again love me. is it normal?