Do I stay?

Forgive the long backstory, but here goes...

My boyfriend and i have been together for a little more than a year. We don’t live together, and now with the quarantine we haven’t been able to spend too much time together. Last night we had an argument.... he got upset because he thought i didn’t want to talk on the phone with him but really I was trying to avoid him being tired in the morning since he works early. The argument carried into today, where he said that it’s his fault that i have lost the spark for him and don’t feel the same way about him as i used to. This is news to me, as i felt things were just fine between us. He tells me he has been questioning his worth and if he’s doing enough for my sake at least for the last six months. I did not know this. He continues to tell me that he’d pay attention to everything his best friend’s girlfriend would do for his best friend and my boyfriend would tell him how lucky he is. Yes, he told me this. At this point I’m really questioning whether or not I’m the toxic one in the relationship and if us being together is just hurting him more than helping. He says he’s going to work on being a better man so that the spark will reignite and he can become the man I want him to be, but I’m still as in love with him as I’ve always been since I first met him. I told him this, and he is fixed on ‘bettering’ himself for me even though every other girl would agree that he’s already the perfect guy. Ladies... i don’t want to hurt him, but i feel like I am doing just that by staying in a relationship where i clearly am not aware that I am hurting the other person. Do I stay?