I've recently re-established contact with a girl last month. We orginally met about 5 years before she went off to school in another state. I feel like this girl is making excuses for not kissing me. Our first date we went on, she was flirty and very touchy but whenver I went for the kiss, she would reject me saying that she was "recovering from a cold." I end up walking her back to her place and we begin watching netflix while she's laying up against me. Again, I go for the kiss but was denied again.

Second date, she did the same thing and blamed it on her recovering from a "cold sore" At this time I'm thinking she's not as interested in me as I thought she was. She was being very flirty and touching me but she would not kiss me.

Another important fact to bring in this is that she is also dating another man, who has a girlfriend. She's perfectly ok with the open relationship because she's dating other people too but I kinda feel like shes more invested in him than he is in her so that's why she's not really kissing me. Am I overreacting?