@msthang1103 : First, do you have a legal contract with your BF in which you would not have sex with others. Second, you both share the same home? Is there really any reason why one of you can't move out? 3rd, get laid... tell your teenage son(? right), that the relationship is over and you're going to be dating other guys. SERIOUSLY, why are you with the guy? Since he lied to you from the beginning, then so what if you "cheat" - not cheating if he doesn't give a shit about you, eh?
Now go out there and get some cock!
@Chaos92 : Am I correctly assuming you are about 23 years old? Love and sex and two different things, but love and sex is still part of a relationship. People in their 60s and 70s still have sex drives. 80s and above - no so much...
Getting a hard-on for your woman is an expression of love to a guy. But as you posted, you don't care about it. You're not into it. You only tolerate what sex you do get and rarely seem to actually enjoy it. If you don't like giving head, but do it anyway - a guy knows. If he pounding into, and you're laying like a dead fish waiting for him to finish so you can get back to facebook... well, by bother. I wouldn't waste my time or yours by sticking around.
If you're in your early 20s and like this - then its likely this is your sex life. OR there are other issues going on. Maybe you're almost A-sexual, maybe you're a lesbian, maybe he's lame in bed. Perhaps talk to a sex therapist - NOT read another 100 articles on sex. My wife sucks cock because she loves doing it and is good at it. If he's not good in bed for you, then that'll effect you as well... there is more to good sex than "Fuck her right in the pussy!".
He has feelings for you, but the anger and lack of sexual intimacy isn't fair to him. He sounds young and inexperienced because he's still hanging around the way guys in their early 20s would do. Consider a compromise. He can still hang out with you, don't get laid... but on the weekend, he's going to go out to parties or clubs or date women and get laid. Give him the option to move on when he has a replacement. But in general, he should stop being a BF to you and later just be a friend.
If the mutual sex is option - then why not be excited for more? To clarify, the "mutual" is when you're actually in the mood for that month or so? Typical women in their 20s~30s like having sex 3~5 times a week, not including rag-week for some. Peaks and dives - usually over time with age and being with the same partner (boooring) or having a baby. After 5 years, my wife is talking to me about some kinky & fun ideas she wants to try out - so of course I'm working on it.
Explain more about "I like strange submissive type of sex". Remember, we don't know WHO you are, doesn't matter. You're talking 50 shades of grey type stuff? Which is nothing more fantasy/abuse with bad writing. Who is being submissive? What part of it do you like?