As an atheist I only date other atheists and agnostics. By the definition of secular Muslim, I would understand you as being muslim, but tolerating other religions/ beliefs... And I would not date anyone that believes in a God (the kind of Organised religions.)
And I say this as a woman who was raised as a Muslim.
I wouldn't say never. But he or she needs to know that they won't change my view on things. And also that our future kids will not be involved and have their right to choose their way when they get older.
If I fall in love with him yes I would, I am a Christian and all though I have my own beliefs I will not enforce them. If we plan on getting married, then a compromise would have to take place from one or another partie regarding whatever. But to answer your question, yes I would. " Love conquers all"
I am Jewish so I am looking for either a Jewish guy or a Christian who is willing to convert it at least partake in my religion.