Yes 100% this has happened to me / is currently active.
I wasn't aware that it's a buzzword or known about but I recommend Alan Robarge's social media for anyone struggling. He's really the best. I should take my own advice and work his recovery steps as this is a very painful and traumatising condition.
I never thought this could happen to me as I've had many many relationships over the years, I never wanted to 'settle down' and knew I didn't want kids. I had a wide range of all sorts of romantic / sexual relationships with many people over the years, the longest any stuck were around the 3 year mark and they tended to fade out, no drama.
Approx 7 years ago when I was in early recovery from addiction (I had been heavily using drink & drugs since early teens and slipped into chronic addiction), I met someone female, same sex relationship, via a dating app who I really liked and we seemed a great match. In fact we were definitely a great match, we had a lot in common and got on well together. But she had some sort of 'Relationship OCD' (only just found out about this, worth looking up) and was intermittently quite verbally and psychologically abusive, very critical. She would 'switch' from loving and easy going and committed to the relationship to hateful and suddenly end the relationship out of the blue with no discussion - silent treatments and ghosting.
I was distraught as I thought she was my soulmate. Especially in sobriety and wellness, I wanted a functional relationship. But we'd always get back together with her assurances that it was going to work this time. I'm a very calm, zero drama, stable, what you see is what you get, open, honest, straightforward person as I'm ASD so I can't really comprehend head games and subterfuge. Being in active addiction obviously I was not well and all that's long behind me I've worked a 12 step prog, I'm well and healthy, it's over. I do not care for provocative, dramatic, high conflict people and my ex was 50% of the time being that and 50% being my idea of perfection. It was crazymaking.
Anyway I ended the relationship when she verbally abused me a step too far, said some cruel and hateful things (slightly drunk). I hadn't intended to end it, just call it out, but she then silent treatmented me and that's that, never spoken to her since. And this is where the trauma bond and the limerence set it. It's been 5 years and I'm not 'over it'. I could elaborate more if nec. Suffice to say I haven't been able to have another relationship and I check her public social medias all the time - worse she seems to be using those to 'communicate' with me (I am not psychotic, this is very real).
I come from a background of extreme neglect, violence, abuse, dysfunction. Both my parents were profoundly mentally ill and my childhood was just horrific. I have PTSD from my childhood. So, I think it's clear to see there's a direct link between parental abuse and neglect, then later being vulnerable to these type of relationships, trauma bonding and limerence. I see the link. What to do? Huh take my own advice and start doing what Alan Robarge suggests I think as 5 years now is way too long.
Also what to do, I never ever 'act on it', ie I am not a stalker, I would never rock up where she is, never go to her home, never ring her up / text her, approach other people mutual friends about her, or do anything proactive to bump into her. I do look at her public profile as it's quite baffling that she's clearly mimicking / echoing / responding / making statements out into the ether to me... it's all very odd. But I need to get over it. Advice and suggestion and criticism welcome.