Marrying someone who worships a guru

[Guest Confused 101]

Hello,

Many thanks in advance for reading this and helping. 

I need some advice as I don't have many people in my life who are in touch with Sikhi. I am a 27 year old and have been in a long distance relationship for almost seven years. The guy is genuine, caring and he has never had a girlfriend before. He isnt like other guys or lustful either. His intentions have always been good and we have never had any issues the last seven years like normal couples do (e.g. trust, other girls, jealousy etc) he is very down to earth and has supported me in my new jobs, at university finding books for me, when i was unwell finding me medicines etc. He has treated me like a family member. He is not like other guys and always treated me good consistently and never changed. His parents also know about me and I speak to the mum regularly. The family and the guy have very strong morals and are a good family. I am not very religious but I try to do my rehras path daily and sukhmani sahib on weekends and go gurudwara attend programmes etc. I want to get more in to Sikhi and i want that for my children too. I try to be a good person and think twice about what would God say if I did this or that. 

The only problem is he is Hindu and he follows some group (sahaj yoga). I found this out some months later when we got in to a relationship. i thought i could persuade him out of it or thought I could be comfortable. But deep down I am not comfortable with this. If it was a different religion that is a bit different but this is something else. 

Now from the last two years my worry has increased on this topic, we have discussed raising children and he wants them to be exposed to both. I am not comfortable for my future children to be exposed to this. I am really scared about when i die what will i say to God if I marry this person or God may say why did u raise children in this. I know that we get one life and experience so many joons to get this life, I am really scared about this. I am writing this with a heavy heart. I have also asked God to show me the right path. Last thing I want is to be stuck in to some cult and follow my hearts desires rather than what guru ji preaches to us. 

Can someone please help me (please dont judge me)? Thank you so much in advance.