Help..😔

Ok me and my bf have been dating a little over 4 years now and ever since the beginning right after he’d leave I would break down and cry, and the day after I would what seemed depressed as soon as I would open my eyes I would have this sinking feeling bc I knew he wasn’t going to be there I would automatically start crying, I wouldn’t eat or want to talk to anyone other than him we’ve always only been able to see eachother usually only 2 weeks at a time bc he lives about 45 minutes away and we both have svjooo and work, and I love this boy so freaking much he’s my bestfriend😢 but lately I haven’t been getting super sad or have that sinking feeling the next day I felt normal, but I was reading online and it said a sign of falling out of love is not missing them when there gone, not every time we hang out I’m constantly looking for signs of me falling out of love, if he annoyed me too much or makes me

Mad too much, etc I’m freaking out idk what to do, when I think about leaving him i want to cry, at those times when I’d get depressed I’ would give anything to make them go away but now if give anything to have them back