Depression and Love

I've been fighting depression for the last 3 months and its made me extremely tired. Always exhausted, dont want to do anything i use to do. Dont want to talk to anyone etc. I'm on drugs for depression and anxiety, the depression one doesnt take affect until 4 to 6 weeks out. What I'm wondering is...does your depression affect what your feelings toward your significant other? So i'm engaged to this wonderful man. He has been amazing during this whole thing, i know its hard on him as well. I can't see myself with anyone else but him, we have fun together and look forward to our future but there are still some days that I don't know. I'm confused, I've talked to family and my very close friends about my feelings they all agree...depression plays tricks with your emotions. They've never seen me happier with anyone else and I haven't! I'm sorry this is so long I'm just needing advice or thoughts. I feel so stupid feeling like this but I would like any input you guys would have. THANKS!