i'm in love with someone who is in love with me, too, who i'll call P. we have mutually agreed to not date as of right now because we want to focus on our personal mental health first. this is a decision im really happy with, because it gives me space to be friends with them and work on myself so i can be better for them when we both feel okay to date. however, while the knowledge that i love them and am loved back is comforting and makes me happy, there's also a residual anxiety that comes with it. 

P is really wonderful and considerate towards me, and has even read up on BPD so she knows what I'm going through, but at the same time, i'm anxious. i trust her 100% when she says that she loves me, and she's done so many things that show that she's committed and dedicated to me, and i've grown past having an FP, so i know she's not that to me. but despite that, i'm sometimes anxious when she doesn't respond, even if i know she's asleep. i like her so much that sometimes its overwhelming, or even exhausting. i get tired sometimes because i feel the compulsive need to be energetic and cheerful around her, even though shes seen me at my worst and has reassured me that i dont need to be energetic all the time for her to love me. 

does anyone have any advice or techniques on how i can feel less overwhelmed all the time by being in love? i really love P, she's a wonderful friend and works really hard to communicate with me so things always end up okay. i think i'm acting better than i have with relationships and crushes in the past, especially because she does her best to understand where i'm coming from and how i think, but i'm still scared that this residual anxiety is going to be too much for me or her. any advice would be really appreciated, and i'm really thankful for anything anyone has to say. cheers