Please share ROCD tips

I believe I have ROCD. my sweet loving boyfriend said near the beginning of our relationship that he doesn’t understand it but will love me and try to help. Now that we are long distance for the summer it has gotten much worse. I’ve gone from him being next door and constant connection to almost nothing because of how busy he is. He still makes an effort to talk to me and keep me updated, but I felt like I wasn’t a priority and was getting scraps of his attention. I have kept bringing up things recently, small things that turn into big things, because when I do I’m scared he’ll hate me and not love me anymore and want to leave me, so things become much bigger than they need to be. Things came to a big head when I tried to connect by asking for a schedule, except he had repeatedly told me how busy he was and that he couldn’t talk. In my head it’ll only take a few minutes if everything goes to plan, but it doesn’t and didn’t. He said he’s very frustrated that I keep piling things on top of the millions of things he already has going on (trust me he’s very busy, like crashes the minute he’s home and done with homework busy) and that he needs time to think. I’ve already reached out to his friend and my friend and while they both comforted me like the amazing people they are I got no insight in to what he’s thinking about and I’m worried I finally pushed him to his breaking point although that’s what I was trying to avoid with everything I’ve been trying to do. I told him I want connection but said he’s he can’t be consistent right now. I’m so so scared he’s considering breaking up with me. I just want to be a good girlfriend. Please does anyone have any tips that are useful for an ocd girlfriend with a mentally healthy boyfriend who is very busy and can barely text every day? I promise he is an amazing boyfriend, this is the only prominent problem in our relationship and that is because we just started long distance. I want to be a good girlfriend and give him what he needs but I don’t want to disregard my needs. I also can’t tell the difference between my needs and my ocd currently. Please help I do not want to lose this sweet boy Thank you TL;DR : please give me long distance rocd tips