My girlfriend's family seems to be dead against love marriage and I feel my girlfriend is not serious about it

Edit: Indha thread ah avaluku share panlam nu iruken, inaiku night oru mudivu kattitu dha thookam. I am 28 now and my family is pressurizing me to get married soon, my girlfriend's family is 100% against love marriage and they're neck deep into astrology, I used online astrology site to only find out that we both are not a good match according to astrology. I asked her when she is going to talk with her family and she just makes jokes that she will message her dad and switch off the phone for 6 months. That's her plan literally. Apart from all this she's constantly saying that she wants to go abroad to study, I am fine with this but I feel like she's only saying this to make me feel bad about asking about marriage. Yesterday she sent an audio of her mother saying that other caste people will marry and divorce her so she has to marry within caste, I was seriously concerned about this because my family is cool with love marriage but they will only accept if there's mutual acceptance between the families. I asked these valid questions to her and she said I am not talking in a supportive manner, and she said let's take a break to see if she can live without my support. I am totally at a loss. I feel like she wants to breakup but isn't ready to take the blame so she is hinting me to breakup so that she can blame me and she can go on about her life carefree without feeling guilty.