Should I message her first ??

So me and my so called best friend stopped taking in March because of something so stupid ... We both have birthdays in March my was the 15 hers is the 29 well she decided to throw her self a bbq the Saturday of my birthday and I told her I wasn't going be able to make it because my BF was going take me out that weekend I turned 21 so we spent the whole weekend out of town and best believe she got so mad after I said sorry she wanted me to tell my BF no about going out of town after he already took the weekend off made reservations and everything for me plus it wasn't her real birthday she could have made it the weekend of her birthday but she made it 2 weeks early and since then we haven't talked I still have her on Facebook and Instagram should I message her I mean I kinda miss talking to her about things and all that ..she's someone I told so much to and we joked about everything we were Bffs guess not anymore  She was supposably my daughters godmom as well but she hasn't even talked to me since March should I message her out of no where or leave the friendship as a end ???