When you say "new bipolar" do you mean to imply you're suddenly bipolar or have been all along and just found out?
Just asking...
Advice?
As long as you give as good as you get there's no reason to feel selfish. Relationships are give and take, your bf isn't forced to be with you, he chose you.
Also, be careful to not give your bf the role of your therapist and or life support.
Support and acceptance is nice, great, and welcome, but you run the risk of burning him out if you involve him in every aspect of your bipolar. Definitly reach out when you need him, but remember to spread out the need, so to speak.
You wouldn't want him equating you with crisis.
Lots to learn here, and many supportive folk to stand by you in your time of need. I hope you like it here and stick around for a while.