Tl;Dr feel like an asshole for talking to multiple girls at the same time due to bad societal conditioning.

I'm Indian, 18 (19 in June), living on campus in my university hostel. I'm tall(6'2) by the given standards here, i workout so I have a "huge" built, no abs but big arms, back, shoulders, legs etc. I've been the most social I've ever been previously in my life, i legit know 10-20 people in law, engineering and business schools of my university within 2 weeks of staying here. Due to which, I've become "confident, fun guy" with confident having the emphasis (I've probably heard people tell me I'm too confident/I have extreme confidence atleast 5 times already).

A girl and I were chatting yesterday on Instagram whom I approached in library just to be friends, and she said something which roughly translates to, "you're a good looking guy, any girl would be happy to be with you" to which I asked her to meet me in the library today. So far so good? Well, a girl today in my canteen/mess area met me and I asked what's her name etc and she asked me to hangout with her after classes, to which I agreed because she offered to make me sandwiches XD.

Here comes the problematic part, the library girl and I were sitting close(basically snuggling) watching watching something on her laptop with one earphone in her ears and the other one in mine, and I looked at her, she looked at me, moment came and I knew i should've kissed her, but I couldn't, i basically rejected myself from kissing her and the moment went away. Alright nothing much happened with her then. Then after a while, in the evening the other girl called me to have some snacks, which we had, and then we both sat in a, idk what you call it, a small version of colosseum? Basically people practice dramatics and skit/play there. We were talking, watching people practice and a moment came where we both were looking at each other and she asked me "is there something on my face?" And at that moment I knew i should've gone for the kiss but I hesitated again and said nothing.

I fucked up 2 chances today just because I thought I'm not treating them fairly if I'm talking to multiple girls. Even if I'm present 100% when I'm there with someone and even if we haven't talked about being exclusive yet. It's the societal conditioning that good guys don't talk to multiple girls. How do I stop hesitating and go in for something more? I certainly don't want a relationship, not saying never but not right now for sure, I've been through a bad breakup couple months back and I don't want another relationship right now.

I probably used this post just to get my thoughts out for myself but I'll still be grateful if someone tells me how do I not feel guilty about talking to several girls at once?