Re: How do we get the love back?
First I hate to be cynical but make sure she isn't cheating. I have read enough stories on here.
Are sure you understand the difference between long term love and the initial butterfly love/lust that you get in what they call the honeymoon period? The first is exciting and intense, the second I like to describe as a warm fire when it raining out. Or having school called off when there is snow outside and sleeping in. That to me is what love should feel like.
Do you try to romance her? For instance I leave posted notes around the house in her purse and stuff telling her how great she is, how lucky I am, and most importantly how hot she is. Do that or your version of that and you may be able to break her hurt down, this will bring you back to the open place where you can heal. Partially it takes you humbly asking her to give you a chance. If you can get to that point then it is probably time to talk about what the issues were and deal with your role in that. You need to sincerely apologize, you need to show her you understand why she was hurt. Don't just apologizes during that talk, but apologizes out of the blue when her guard is down, "hey, I want you to know, I know what I did, I see how that hurt you and I am working to never let that happen again." Then move hell on earth so that you never do that again.
Most likely your sex life will not improve until you do this. Most woman need to at least feel emotionally safe/connected to have continuous sex with someone. They may go through the motions but usually that is only for a short time. For us it is much easier to separate, for most woman that is not true. For us to have sex our physical parts need to work, if not no sex. For woman to at least want to have sex there emotional parts to work. To be crude, she needs an emotional hard on.
Do not marry until you can learn how have health arguments. Arguing is for solving problems, it's intense negotiation. If you are not doing that you are not doing it right. You always here people say marriage is hard, but it should be hard because you should always be working to be a good partner. Do you have any hobbies? How much time do you spend on them? You need to treat your marriage like that. That means learning about women, her, communication, sex stuff like that. Your focus on your marriage should be at least as much as your hobbies. Actually more so.
Finally after all if you are willing to put in that kind of effort the last thing I would say is don't be a pushover. Demand the same about of work from her. Don't be passive in your life. Don't be one of these guys on here who are willing to be treated badly because they don't want to be alone. People need to be partners with people they respect, if you don't respect yourself they will never respect you.