Wintering in Spain

Do you love the Spanish way of life? Me too, and I'd like to spend the winter months in good company in Southern Spain, looking for a roommate/flatmate for a temporary shared apartment (1-3 months) in a holiday apartment/house of our mutual choice. We can decide on the destination together. My idea is a normal everyday life with shopping, cooking, excursions, and cultural activities. I am 65+, female, physically fit, have diverse interests, and appreciate a relaxed coexistence. I am not looking for a relationship this way. The costs incurred should be shared. Travel by plane from various departure airports or by car would be possible. No pets, please! I would be happy if we could use the time to get to know each other better in person beforehand.