Opportunity and Inclination is actually a repurposed line from Pride and Prejudice. There are a lot more men in my industry and it's known for its drinking/sexist culture. Whenever I went out (which was rare) for drinks/dinner with work my H would always make some snide comment about how men only want one thing and I should be careful with the way I talked/dress/acted. I would respond with "opportunity and inclination" and as I had no inclination, all the opportunity in the world didn't make an iota of difference. I took this as controlling and a lack of trust. In retrospect, it was all these things, but it was also love. He loved me and I belittled him.
Anyway, the thing with inclination is it isn't a conscious thing. You don't go out saying "I am now inclined to ...". You just are or you aren't. Like you, I tend to say yes to all social invites. I'm not going to lie, sometimes I don't want to say yes, would rather sit at home and watch Netflix, but I say yes anyway with the intention of having a good time. If I happen to meet someone (and sometimes I do) I will go with it. But I haven't met anyone who makes my heart skip a beat. I always find something not quite right. I know if it was right, and I was ready, then I would find these things charming and not annoying. That is all I am saying. That when it's right you will know. Be open to the opportunities but do not force the inclination because of culturally accepted notion of completeness or your own feelings of loneliness. You are enough. With or without someone, you are enough Yail.
Go out, have fun. Be open to new ideas and new experiences. The road will take you where it takes you.