In a healthy scenario, this attractive woman will be with you because she likes you for you are and not be focusing on some fantasy that she might think an ideal partner would be. She should sincerely like you for who you are and understand that life will have it's challenges. It's up to her integrity to stand by you during a particular difficult season if she's committed to staying in the LTR for the long haul. As long as you're relatively financially stable, decent shape, have passions and interests outside the relationship as well as friends that aren't just mutual friends of the couple, good listener and responsible, etc. then I think a successful LTR is possible.
If the woman's unhappy with herself or a past childhood/abuse issue lingers then that should be on her to fix herself by talking to her girlfriends, therapist, lose weight (if she's over weight obviously), find a passion that adds back to her self esteem like volunteering her time with a community event, church, a friend in need. A motivational book, whatever it takes to get her out of a funk. She shouldn't try to reframe her unhappiness solely on you, that's not accurate if you're making the right consistent moves as a DJ.
Unless you're royally screwing up as a man, she can't blame you for getting "bored" or feeling "unhappy." Hopefully, she's mature and smart enough to know that another guy or fleeting temptation won't fix what's going on within her or turning to another vice like addictions be that alcohol, social media, drugs, compulsive shopping, video games or whatever unhealthy coping outlet. You'll still have to date her and surprise her time to time romantically to get her interest level engaged, but again... I don't think it's impossible. The right woman for you will want to take care of herself to keep you engaged and interested in her.
So continue being the best DJ you can be and don't get hung up on over pleasing her, if she requires uber pleasing beyond your willingness to invest in the LTR, move on. You'll save yourself the heartache when she begins to look for the grass that's greener.