Invite ex bridesmaid to wedding?

A good friend of mine for a good amount of college, I believe about 3 years, was a bridesmaid of mine when I first announced my party. Since starting the group chat she sent her name so everyone could save her number then literally never spoke again. I never saw/heard from her leading up to the engagement and even less after the engagement. The only time I really heard from her consistently was when after college graduation and I moved to the city she lived and we hung out a bit at the beginning. I admit I did feel some sort of obligation to ask her even though we hadn’t spoken that much because I told her in college she would be my bridesmaid (FH and I were college sweethearts and she’s good friends with him too). Some months later when dresses are being discussed I reach out to her to see if there’s anything going on as to why she’s been completely MIA and out of nowhere she says she applying to PA school in the fall and she wasn’t sure if she could be a BM any longer but wouldn’t know for sure. I was really confused because she obviously knew this information for a while and never bothered to say anything until I reached out to ask why she hadn’t been around. How long would she have waited to tell me. I just ask if she thinks it’s gonna be too much of a commitment I wouldn’t be hurt if she stepped down but then I didn’t hear from her again for over a week until I reached out again and she finally asked to step down. She reassured me she still wants to come as a guest and it has nothing to do with me or FH but still I never hear from her but I see her posting about going to other weddings, other bachelorette parties, and posting about her other bride to be friends so I’m a little hurt right now and don’t know if I should even bother inviting her still. FH says definitely not but I don’t know what to do