I had a boyfriend like this as a teenager. He wasn’t a bad person but he was very young and was constantly letting me down, then breaking up with me then we’d get back together - because we did genuinely love each other but he also wanted to go out with his friends etc - I probably was a bit needy tbh.
i’m not sure anyone could have stopped that from happening. We ended up being together on and off for 4 or 5 years depending how you count it.
I regret it in some ways. I didn’t so much as kiss a boy the whole time I was at Uni because I was either with him or pining after him. I regret not being open to more experiences.
i think I was very loving and keen to be “in love” and too willing to live through the drama of broken heart etc. I’m not explaining it well.
I spent some time with him (not romantically) a few years ago and he was remembering our relationship fondly. I said to him “do you realise I cried every single day we were together”? He was horrified and genuinely sorry. I think what made it more complex was that he was basically a nice person, we had a very strong connection and we did really love each other. If we hadn’t it would have been easier to leave.
It was really hard for my Mum to watch I know. so what could have helped? I’d say avoid conflict about it - if won’t help. Build up her confidence, love her (as you clearly do) and make her feel confident in her own decisions. The only thing you can do is foster her own ability to stand up for herself and draw boundaries.
fwiw I’m fine!!! In my 40s now and with someone very different with 2 kids and a happy family. I’m very emotionally stable and a happy person overall. So hopefully this doesn’t mean that she won’t have a good future relationship but maybe she just needs to go through it to learn the lessons as I did.