Help please?

So basically i need to make a hard decision. I’m currently in a relationship and have been for 6.5 years but I feel we’re growing apart, I’ve recently being diagnosed with anxiety/depression and suffering from panic attacks this is all down to quite a few difficult things going on in my life this year. I’ve found that being around my friends is helping me out with my depression, but the thing is one of my friends has been through depression themselves and they understand what I’m going through but I’ve started to fall for him, he’s so sweet to me and always asks how I am and is always there when I need him and just genuinely seems interested in what I’m going through and does all he can to make me feel better about myself. My partner on the other hand just makes me feel worse and puts all his problems on me, what do I do? I feel like want to end my current relationship but I don’t want to jump straight back into another x