eschewingmycud
From the press release (https://edpb.europa.eu/news/news/2023/edpb-urgent-binding-de...):
"On 27 October, the EDPB adopted an urgent binding decision ... to impose a ban on the processing of personal data for behavioural advertising on the legal bases of contract and legitimate interest ..."
Under GDPR Article 6, all processing of personal data requires one of the following lawful bases: consent, contractual obligation, legal obligation, vital interests of a person, public interest, or legitimate interests of the controller. The ban says that Meta can't use two of these as bases---contract, legitimate interest---for behavior advertising. Behavior advertising that is consented to is a-okay.https://en.wikipedia.org/wiki/Department_of_Commerce_v._New_...
Ungenerous translation: That thing that's been really important to you for four years -- just forget about it. If you stop feeling bad about it that you'll stop feeling bad about it. Also marriage is objectively a silly institution. Sounds like you'd like to get married. Maybe that makes you silly. Getting a PhD though -- that's going to change your life forever! You'll be proud! If you're not proud because you don't like your sub-field, well ... maybe that also makes you silly!
To the OP: Sounds like stuff's really hard right now. I'm sorry for that. Grad school is damn hard some times and relationships are too. If find the above advice reassuring or helpful, great! If not, try to brush it off and read other more supportive comments. I hope things get better for you soon.