Confusion

When it comes to love, it can always be very complicated. Do people always stride out for love? Do they always fall in love without fear of getting hurt an lost? I don't. I don't want to get hurt. If ending is foreseeable, is it still a good choice to keep going? Is it still a good choice to maintain the relationship when uncertainty overwhelms? I'm confused. I'm really confused now. Should I believe what I see and what I feel?