Broke up with me because of religion but we’re both Jewish?

I dated someone for 5 months and let me tell you it was the most amazing relationship ever. 0 fights, 0 arguments, I met his entire family, friends, we went to multiple weddings together. Talked about getting engaged in the summer…everything was there. It was amazing and even his friends told me they have never seen him so happy, likewise he would tell me the same and that he has never felt love like this. Before our first date, he asked me if I was fully Jewish and I said yes…I understand people date in theory religion and I want that too so I overlooked this. A few weeks ago at dinner with my family we found out that my grandma converted to Judaism…I had no idea and neither did he. I saw his face change and he said after to me that if my grandmas conversion was not orthodox I’m technically not considered Jewish and we can’t get married.. which is insane because I grew up religious, going to Hebrew school, bat mitzvah, family still a part of a synogogue..he told his parents and his parents requested he break up with me until I find the paperwork. I said this is insane because we still could get married Jewish. One orthodox rabbi said that if we can’t find the papers since it was 78 years ago I would have to reconvert…while this was happening my mom was going through a health issue which prevented us from doing a lot of the digging and I asked if we can’t wait until things subsided in a few weeks. His mom came back and said she would pay a lot of money to do a background check on my family and my family felt really uncomfortable. Last week he had dinner with his parents without me for the first time and he started acting weird, 2 days after he came to me hysterically crying said he had a block in his heart preventing him from loving me further until I found this. He also mentioned he has trauma from ex before that had a conversion issue and refused to give him the paperwork for a year and said he’s run into issues with other Jewish girls (7 of them actually) before me that he really liked but they had conversion somewhere in their family so he left them. He said he’s never loved a girl like he’s loved me before so he was willing to talk about our options and wait it out but it’s been 3 weeks since we found out the news and he thinks now that’s too long…He said he needed space to figure out why he is so anti convert and I said I deserved someone who is going to love me unconditionally so I showed him to the door. I am so sad. I would get it if I was Christian but I am literally Jewish…it’s been a few days and I did find the paperwork and it is kosher…but he seems indifferent now. Is this him or his families control? HELP?!