Feeling unlovable

I'm new here. I've struggled with severe anxiety/panic attacks for over 10 years now with some depression mixed in. I'm 27 and I've been through two long term relationship breakups because they said they couldn't deal with my panic attacks and how I avoid a lot of normal things because of my anxiety. It's true, my anxiety is very debilitating despite me getting a lot of help for it. The first breakup really broke my heart & I finally got through that pain & let my guard down to let someone else in, who said he'd always be there to catch me if I fall, and he just left me too. What's even harder is my anxiety wasn't even at it's worse when I was with him. How do you feel less hopeless when the people you love can't put up with you?