I hate to sound super-negative, but the relationship definitely takes two. Oftentimes, one person puts 150% into the relationship, while the second party gives maybe 10% of themself. To some extent, giving and taking is perfectly normal in healthy relationships. The problem comes in when the giving and taking parties don't ever exchange places.

I would recommend that you start taking care of yourself ~ emotionally and physically. That just might give your bf motivation to put a little more effort into the relationship. I hope that it does! Going to a T together is an option, to have an unattached third-party listen to you both equally. They do have homework for each person to work on ~ which reminds both people to be a little more thoughtful of the other. Like: What's he going through? How does he feel about X? They also teach you both not to attack one another by the way you word things.

Ex: I feel very sad right now. I feel that I don't spend much time with you. Can we spend more time together? { You're sharing how you feel. No attacks on him/her. More likely to get a positive response.}

Instead of: I'm so lonely! You're always leaving, and going out having a great time without me! { These types of words immediately put the other on defense. A fight and tears waiting to happen! }

Best wishes to your little family. Hope that things improve for you soon.