
Need more context here? If you were talking about liking men and women and they suggested it that's reasonable but if for example they suggested as an alternative to being gay/straight then that's iffy. In general tho if a therapist is making you uncomfortable or not helping it's best to find a new one
If you're only into women then you're only into women. I've seen a lot of lesbians try to force themselves into liking men and every single time it makes them miserable, please don't do that to yourself. Also you can just lie to your family and say you're bi to them but not actually be. Also that's shitty of ur therapist to suggest that as a cure for loneliness