I’m Frum and met someone at work who is not jewish. And one thing led to another and now we are in love. What do I do? Do I tell her to become jewish ? or do I let things stay as they are?

Shalom, Your question just got to me, though you sent it in quite a while ago. I don't know you, so anything I say may be rephrased, but I will share some thoughts. I think you first have to clarify your own relationship to Judaism and halacha. If your committment is strong, and you want to live a Jewish life with a jewish family, you have to share that with the woman you love. If she is not interested i n your Jewish committment, you will have to choose between the two - Judaism or her. If she wants to share your life and your Judaism, send her to a Rabbi who is sensitive and is involved in giyur, and have him try to sort things out. I would generally advise a period of time that she relates to Judaism without you around. If in the end she converts, you will get back together Best of luck