Advice please

My friend and I have been close for about 4 years almost weekly meetups or at least talking multiple times a week she was in my wedding and felt like our friendship was great. She got a new boyfriend hangouts became less sure that’s totally fine. Then it was just seeing her maybe once a month after many times trying to make plans and her responding many days later saying sorry for not responding, and it was all her talking about things in her life (which i understand she had a lot going on) and it just felt bad like she didn’t care about our friendship or me. I had a birthday party in September and her and her boyfriend came and that was great but then I haven’t heard anything from her. I know it’s immature but I just felt like I should just just see if she would text me at all and she didn’t so I texted her 11/24 and no response am I just stupid to want to hold onto this friendship.