TLDR: Girlfriend was sure this is her “it” relationship but fell completely out of love the moment my professional life took a u turn

So I’ve dated this girl for a while now, and I’ve had a bit of a rough past with my dating history, I’m not sure if it’s the people I choose or me but I don’t have the best track record of being able to make relationships last.

Fast forward to a few months back, my girlfriend told me that she loves me enough to see us getting married in a few years time and I thought okay great I’m finally good at this. Then there was a bit of an incident relating to another guy who incidentally is a lot richer than I am and is also successful but does not look very good. On the contrary, I would say I look better and am not as successful.

Recently I’ve been unemployed for a bit and ever since I haven’t been able to get myself steady again, I’ve seen her completely fall out of love with me, she’s broken up with me about 5-7 times now over mundane reasons with me initiating the getting back together part each time. It’s evident she’s not happy in the relationship and wants an out but can’t find a guilt free exit.

My question is, how does someone deal with this mentally, especially at a time when you’re already dealing with unemployment, and my mental health is at an all time low. Any advice or discussion on this would really help me a lot because in my mind my options are either breaking up and being single, or staying in this and trying to win her back, or just trying to have an open relationship.

Another important piece of information: she is completely against the idea of cutting each other off and insisted on being friends after each break up.