BFF and her bf

My BFF of 10+ years found herself a bf since the beginning of this year. Before she started dating, we would hang out a lot, call each other, share our ups and downs, etc. But ever since she started dating, our time together decreased significantly. I understand this could happen and respect her space. But the problem is that she prioritizes him more with her time. She would often leave our meetups early to be with him. I would ask to hang out but she would tell me she’s busy doing “other things important” but I find out that she’s with her bf. I feel like these days when she calls to catch up with me, half the time it’s ranting to me either about her bf or about her bad day.

I don’t really feel valued in this friendship. I expressed my emotions to her and she acknowledged all this and promised to improve. But idk anymore